His name is Tobbie II, and although he stands only about 6-7/8” tall, he does sport (6) actual feet, which is why he has such an agile, 360-degree, free-rotation body. You build him yourself (easy-peasy if you’re over 10) and program him on your computer, tablet or smartphone. Comes out of the box pre-programmed with Assembly Checker and Program #1, so the fun starts right away. Use him as a light tracker or thermometer, or to play rock-paper-scissors or bowling, or as a notice board, calculator or compass, or as a pet who will follow you. He’ll do other things, too. Includes a 36-page manual, and all you add is a quartet of “AAA” batteries and some common hand tools.

How about three extra hands? This multi-purpose workstation tool has a large 3X, 3-1/2" dia LED-lighted magnifier on a 10" gooseneck (you add 4 "AA" batteries), a soldering-iron stand, cleaning sponge plus steel wool, a canister of flux paste, a pair of  alligator clips with ball-socket mounts on the ends of a 4" rod  plus an extra hand with a third alligator clip on a 10" gooseneck. It all weighs in at a stable 3+ lbs and has a 7-1/4" x 6-3/4" base so you won't need fourth hand to hold it upright.

For bigger, or longer, projects, and hands-free operation. This 1/4-hp flex-shaft grinder has a 42" long (counting the chuck) flexible shaft, a keyed chuck that accepts bits up to 5/32", a variable-speed control foot-pedal power switch, and a comfortable 1" dia hand grip. The motor runs 500 to 22,000 rpm, operates on 120VAC, measures 3-1/4" dia x 4" long, and has a sturdy hook to hang it from an over-the-bench shelf. Intermittent duty. Over 25 grinding tool accessories included!

Top off this beautiful tool with our 227 piece accessory set. Click here

The last set of hole saws you'll ever need. This 10-piece set of diamond-encrusted core drill bits comes in a wooden presentation case (Hey, they've got diamonds on them!) and includes 1/4", 3/8", 1/2", 3/4", 1", 1-1/4", 1-3/8", 1-1/2", 2", and 2-3/8" outer dia. Shanks are 1/4" except the (2) largest, which are 3/8", and all the bits are slotted to blow out dust. Each bit is 1-1/4" deep. Designed for cutting glass, ceramics, porcelain, ceramic and porcelain tile, limestone, slate, marble, granite, stone, fiberglass and other tough stuff. Don't forget to add water (not included) for lubrication.

This mini version has all of the big guy's abilities on a slightly reduced scale. The bench-top drill press measures approx 15" tall overall on a 6-1/2" x 9" x 1" cast-iron base with a 1-5/16" dia x 11-5/8" tall column. Max working distance is approx 7-1/2". Chuck opens to 5/16", with a spindle travel of 1". It's 120VAC, and has (3) speed ranges, of 5,500, 6,500, and 8,500 rpm. Includes (2) Allen wrenches, chuck key, and, believe it or not, an instruction booklet that is easy to understand.

This nifty botanic lab kit from Engino® will appeal to budding (pardon our punning) botanists and youngsters with a mechanical bent. Has (4) projects, including a 14-1/2” x 9-1/2” x 13-1/2” clear plastic greenhouse with a gear-driven window, a pseudo-ox-driven plow, and a cube. Comes with (2) germination trays, a dozen small pots, and a 42-page manual. Mates with other Engino® parts. Made in Cypress, which makes for a nice change, we think. Ages 8-16.

Impressive, this 3-foot Lizard King. The 1:14 scale plastic model of a Tyrannosaurus Rex skeleton has 51 bones that snap together, then snap apart easily for later use, which is more than you can say about the original. Measures 36" long, and comes with a display stand. Bones are nicely aged for paleontological verisimilitude. Very nice kit, with legs, as they say! For ages 8 and up.

Please Note: Your entire order will ship standard ground when purchasing this item. Contact us for expedited shipping information. Thanks!

Nothing to it if you have these 20 x 70 binoculars with rubber-coated housing for ruggedness, anti-reflective 70mm blue-coated lenses, and a K9 prism for sharp images. You'll have a 367 foot field-of-view at 1000 yards which is great for camping, wildlife viewing, more and large enough for you to enjoy viewing the night sky. Measure 11-1/4” long overall, weigh-in at 3lbs and come with folding eye-cups, right-eye diopter adjustment, adjustable neck strap, a carrying case and a cleaning cloth for accidental thumbprints on the eyepieces. A real deal for the astronomy or nature lover. 367 Ft Field of View @1000 Yards

The next best thing to lightning bolts! 200,000 volts of electrostatic energy created by our Van de Graaff generator. Measures 6-1/2” diameter by 15” tall, includes a spare belt and a set of instructions detailing lots of fun experiments. For grade 6 and up. This is not a toy and should be used under adult supervision. A great tool for teaching about electricity. For your convenience, we now have Lightning Belts: replacement belts to drive that overworked generator. Operates on Standard 120 VAC with the included 3' cord.

Chain down the deck furniture or tie up the pooch with this 7 x 7 strand galvanized steel PVC-coated aircraft cable (1/16" dia, 3/32" dia with the coating). Rated for a 95-lb workload, our each is a 500 foot, neatly spooled length. Buy it by the reel and you get the reel for nothing. Please Note:

Your entire order will ship standard ground when purchasing this item. Contact us for expedited shipping information. Thanks!

Distillation made heuristic. Nothing explains a process like a little hands-on experience, and this laboratory distillation kit is for showing instead of telling. Includes a 300mm Liebig condenser, Kjeldahl distilling column with 50mm dia bulb and rubber stoppers, 500ml Bomex boiling flask with 8" iron tripod, 2-foot lab stand/base with a single burette clamp, 500ml graduated Erlenmeyer flask and a 6" square of ceramic-coated wire gauze. You add some 1/4" ID tubing for the Liebig ports. Includes good directions for distilling ethanol and acetic acid.

Please Note: Your entire order will ship standard ground when purchasing this item. Contact us for expedited shipping information. Thanks!

Brand new 2' x 2' LED panel lights. 3000k (Warm Light) and operates on 120vac with the included driver. These panels fit into standard drop ceiling tiles and only draw 40watts of power making them ideal as replacements for larger fixtures. Surplus Fact: Driver might be different than photo shows. 

Note: Item is not available for expedited shipping. Retail store customers: available by special order only.

Nope--we thought it was a theodolite-- a surveying instrument for measuring angles in horizontal and vertical planes, but it seems we missed the mark. With the help of a knowledgeable Surpie, we’re reasonably sure this olive drab apparatus is an artillery sight for a Chinese howitzer. (See, even we don’t know everything.) Measures approx 7-1/2" x 5" x 4" with a plethora of moving parts: optical head that pivots up and down; focal knob calibrated from 0 to -90 and +10 to + 80; horizontal and vertical adjustments with a locking lever; and a 1-5/8" dia ball with a 1/2" hole in the bottom for a mount. Weighs in at over 5 lbs. The paint is chipping, but you would too at this age.

Snap Circuits® kits are perennial faves here at the home office, and this 47-piece kit is an electronic honey. The most fun you can have without a soldering gun, and it’ll teach you about electricity and magnetism. You’ll learn how the electricity in your house works, and specifically how light switches control electricity, among many other things. Leads to more than (90) projects, and includes a 68-page profusely illustrated manual and a large base grid. The manufacturer, Elenco®, says it’s made for ages 8 to 108, but we’ve never tested it on anyone over 94, so we can’t verify that. You add a trio of “AA” batteries, which, conveniently, we can include in your order.

Metal detectors by Bounty Hunter® to fit your needs!  The kid-sized Bounty Hunter Junior is 31-1/2” long overall, but loaded with professional features. It includes a 6-1/2” dia detector coil, ballistic meter, controls for power/sensitivity and target elimination (which helps eliminate iron, for example). Also has an audible proximity sensor that works in tandem with the meter. The manufacturer says it will find coin-sized objects up to 5” deep and larger ones up to 2 feet deep. Or move up to the 2.8 lb Bounty Hunter Tracker IV, with a padded arm support and cushioned hand grip, and an overall length that can be adjusted from 45” to 52”. Its fully automatic Ground-Trac® constantly adjusts to scan through dirt, rock, wood and mud, and the 8” dia open-face search coil is completely submersible. It has three-mode discrimination (all metal, tone and full); a sensitivity control that filters interference; a large ballistic meter; and an internal speaker that works with or without headphones (not included). It will find small objects up to 8” deep and larger ones up to 3 feet deep. Each comes with a well-written instruction manual, and requires a pair of 9V batteries (not included).

Our newest Celestron® compound (biological) microscope is even better than the last one we offered. This one comes with a 3.5" color LCD viewing screen that rotates 180° for easy sharing in a lab, classroom or at home. It has an upgraded 5-megapixel camera that can record 625 hi-res photos or 20 minutes of 30fps video to the included 1GB SD card. The 4X, 10X and 40X objectives provide 40X, 100X and 400X optical magnifications, and the digital zoom raises it up to 1600X. On-screen, button controlled settings allow you to easily adjust exposure, image effects, a digital measuring reticle and other visual tweaks. Top and bottom independently adjustable LED illumination and a built-in 6 position filter wheel allow complete light adjustability. Also included are an AC adapter with 3 extra European adapters for those who travel, (5) prepared slides, USB and video out cables and a rigid lined 15" x 7" x 8.5" OA carrying case with a suitcase-handle and shoulder strap, for storage, field work or classroom visits. Carries a 2-year manufacturer's warranty.

Let them build like their grandfather built. This colorful Steel Works Ferris Wheel construction kit from Schylling has over (950) pieces, plus tools to assemble a 14” tall model. We’re talking about hours of fun and brain challenges here! Includes a music box mechanism that plays “The Entrance of the Gladiators,” aka “Thunder and Blazes”. Kids who are really inventive can take it apart and use the pieces to assemble a creation of their own. The possibilities are just about endless. For ages 8+.

…when you crank up this 13-1/4" tall, hand-cranked Wimshurst generator. They were the toast of the 19th Century, and remained the hottest thing around, electrostatically speaking, until Bobby Van de Graaf came along. This one works like a top, zapping sparks to a fare-thee-well with very little cranking. It's mighty pretty too, in acrylic, white and silver, and will dress up a dull physics or electronics lab.