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Defective or Unique?

Warning!  WARNING: CHOKING HAZARD-This toy is or contains a marble. Not for children under 3 yrs.

You decide when you get a bag of these clear glass marbles. They've all got inner defects-air bubbles, mostly-and some have indented veins on the surface. That just means you're getting a selection of one-of-a-kinds. Most are 3/4" dia, some are a touch larger. (15) marbles per order.

27494 GLASS MARBLE, 3/4" DIA
$1.00 PKG(15)

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Itty Bitty Zipseal

Zipseal plastic bag of the size gnomes use to store leftovers. 1" sq, 2" sq, 2" x 3" or 3" x 4" (our each come in bags of 100 count), clear polyethylene (the 2" x 3" 27906 has a white strip across one side, 36562 does not.). Store rings, small rock samples, biology parts, and model pieces. Great for cleaning up behind your Guinea pig when you take him for a walk.

90273 POLY BAG, 1"
$1.75 EACH
27906 POLY BAG, 2" X 3" (STRIP)
$2.25 EACH
90274 POLY BAG, 2"
$2.00 EACH
36562 POLY BAG, 2" X 3"
$2.25 EACH
34552 POLY BAG, 3" X 4"
$2.95 EACH
 

Marble Slabettes

Marble bases with small imperfections. But hey, who among us doesn't have a few? Made from a beautiful white marble, they were intended as trophy bases but can be used to display art, small science projects, etc. They are 3" X 3" X 3/4" thick and some boast soothing cork bottoms to protect the furniture. Made in Italy.

25701 MARBLE BASE 3" X 3" X 3/4"
$1.75 EACH

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Submersible Pumps

Here are the ins and outs of submersible pumps for your DIY fountain.These small electric pumps run on 24 VAC (For low energy consumption.) from the included wall outlet adapter, are rated for continuous duty, have (3) suction-cup feet, an adjustable flow control and both a straight and 90° 5/16" tubing adapter. This little pump is roughly 2-5/8" x 1.5" x 2-1/4", has a 6-ft power cord with an in-line switch, and pumps 70 gal/hr @ 1 ft lift. Plug it in and go with the flow. Indoor use only.

91348 INDOOR PUMP
$14.95 EACH

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Mashers and Smashers

Porcelain mortars and pestles. Great heavy duty mortars, with sides that are easily 5/16" thick on the smaller ones, and up to 1/2" on the larger. The mortars are glazed outside, but rough inside, the better to grind, and have a pouring lip. The business ends of the pestles are unglazed, while the shafts are glazed. Very functional, very good looking!! So grind your own spices or lab concoctions as you prefer. You get a mortar and pestle as a single order.

    Mortar Dimensions Pestle Length  
88314 MORT & PEST, 130ML 4" OD x 1-3/4" 4-3/4"
$6.95 EACH
88909 MORT & PEST, 600ML 6-1/2" OD x 2-15/16" 6-3/16"
$13.95 EACH

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Scope Your Stethos!!

Stethos is Greek for chest. Indeed you can scope your stethos with this stethoscope, or your friend's or your dog's. But it works equally well for picking up any sound being transmitted through a solid medium. Listen to the air flowing through the heating ducts, the water in the pipes, the sounds of machinery, the termites munching on the floor joists!! The color does vary so we will select from what's currently available. We've had blue, teal, red, black, burgundy, green and purple, but there may be other colors yet to be seen! A great discovery device whether for biology or other pursuits. Not of professional quality, but not just a toy.

11077 STETHOSCOPE
$5.95 EACH

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Diamond Files

A set of (5) needle files, 5-1/2" long, which are coated with industrial diamonds. Perfect for sharpening tools, or doing filing on hard metals etc. when you are sculpting or welding. The shapes are the usual assortment of flat, round and in between shapes.

89397 DIAMOND FILES
$13.75 EACH

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A Real Grabber

Okay, it isn't the cheapest magnet in the warehouse - but we dragged John's 165 lb filing cabinet around the dock with this 4-7/8" x 1" x 3/4" ceramic magnet, we're rating it conservatively at 100 lbs of pull, and we think it's a bargain. It has a 6" bracket with mounting holes on 5-1/2" centers, plus a 1/2" ID eyehook bolted into the center of it. It's all set to troll the bottom of the lake next time your filing cabinet falls overboard.

91949 PICK-UP BAR MAGNET
$10.95 EACH

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Dandiest Donut in the Domain

Donut magnet you can take to town!! 74mm dia x 14mm thick with a 30mm hole. Very strong and well pedigreed - in fact, its kin are activating pacemakers. They are of a high permeability ferrite material with a lovely light blue or white epoxy coating. Okay, we have them because there is the odd bubble or scratch in the coating which ruled them out of the medical ball, but they're fine company nonetheless. Good display bases, paper clip traps, and super for classroom demos.

2823 BL/WH DONUT MAGNET
$3.75 EACH

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It's A Snap

Every lab needs one: this spring-loaded metal pincer lets you rotate a glass tube against a cutting blade, then press down to snap the tube just where you want it snapped. Simple and precise, for tube diameters from tiny to 1-1/2".

91921 GLASS TUBE CUTTER
$10.95 EACH

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Battery Tester

Knowledge is power - in this case, battery power. You'll know from the easy-to-read gauge on this black-plastic handheld mini-tester whether a battery is good, low or needs to be replaced. The 4-1/4" x 2-3/8" x 1" testor reads "AAA," "AA," "C," "D," 9 volt, 1.5 volt button, and other sizes.

91981 BATTERY TESTER
$4.25 EACH

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