Couldn't tell it from the glass variety by just looking. This plastic mirror with squared off corners measures 3-15/16" x 5-15/16". Comes with protective film on both sides. We're thinking camping, lockers, deserted island or just a nearly-unbreakable travel item. Pretty flexible, too, if you like fun-house mirror effects.

Well, okay, glass, because numbers and equations would block what you're trying to see. At 7-11/16" overall, the 4-1/2" sturdy black plastic handle and frame holds an approx. 2" x 2" square lens that magnifies to 4X. With (5) white LEDs and (1) UV LED, 396-400nm wavelength, on the business side, you'll see that tiny print, or easily check out money, stamps, insects, etc. Uses (4) included AG10 button-cell batteries.

These 3-1/4" dia magnifying glasses on 5” handles are a big step up from the traditional Holmesean versions. Acrylic 1.5X lenses are surrounded by a trio of super-bright white COB LEDs for improved clue detection. (Holmes would have killed for COB lights.) They run on (2) “AA”s, thoughtfully included. We’ll pick one in a color that will complement your deerstalker.

Begin their microscopic education here, with this 40-640X student microscope from Levenhuk®. Featuring an adjustable eyepiece, variable white LED illuminator, and adjustable iris. Comes with a cover; (5) blank and (5) prepared slides; pipette; brine shrimp, yeast, sea salt and glue samples; forceps; a microtome; 58-page user guide; and a 23-page manual. Includes (2) “AA” batteries and a lifetime warranty through the manufacturer.

This extremely good quality folding jeweler's loupe is in polished aluminum and folds into a protective cover. It measures 1-5/8" x 13/16" and is teardrop-shaped when closed. Doublet lens, 18mm dia, 10X, lit by (2) very bright white LEDs, powered by (3) button-cell batteries that are included. It has a small loop for a chain, and comes in a plastic case with a small tool for accessing the batteries.

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.

Treat yourself to an assortment of our finest negative meniscus lenses in sizes between 14mm and 52mm with focus lengths between -29.7mm and -169mm. Negative meniscus lenses spread light instead of concentrating it, so they're sort of de-magnifying glasses. (Perfect for reading if your vision is too good.) You get (4) lenses in each of (5) sizes for (20) total.

Nothing to it if you have these 20 x 70 binoculars with rubber-coated housing for ruggedness, blue-coated optics, and a K9 prism for sharp images. Great for camping, wildlife viewing, more and large enough for you to enjoy viewing the night sky. Measure 11-1/4” long overall and come with folding eye-cups, right-eye diopter adjustment, a standard tripod mount between the optics, adjustable neck strap and a carrying case.

The sport of the future? No, cork-lined polystyrene boxes for holding microscope slides, complete with numbered slots and inventory sheets on the lids. The boxes are 8-3/4" x 6-3/4" x 1-1/3" with hinged lids. They are stackable, and you might get them in a variety of colors.

These 9mm dia  plano-convex (PCx)glass lenses have an appx. 154mm focal length, and are perfect for arts and crafts projects, or for making the worlds tiniest telescope. May have a few small chips but we will sort them as best as we can. Call about larger quantity discounts!

Has the print in your books been getting smaller? Fight back using this 3-1/2" long plastic magnifier with (2) lenses. The 2x lens is 1-3/4" dia., while the 6x lens is 3/4" dia. Kids will love using it to explore bugs, crystals and leaves up close.

Frees up your hands while you examine whatever you’re examining. The approx 2-1/2" dia acrylic lens is 2X (ignore the surplussing 2.5X on box) and is mounted in a black fold-out frame with a pair of white LEDs underneath the lens for your examining pleasure. Measures 4-1/4” long and includes 2 replaceable AG7 batteries.

Thick, but very desirable, like a nice fat slice of salami, these negative meniscus glass lenses are 55mm dia with a focal length of -169mm (think: reduction). Great for artists and crafters. Edges might have some slight chips, but that's surplus for you.

Capture stars and amoebas on your smartphone with the Orion® SteadyPix™, which allows you to take phone pics through a telescope, binocular, spotting scope, and some microscopes. The rubber-coated clamp fits phones from 2-1/8” to 3-3/4” wide, and the twist-lock clamp fits devices with eyepieces between 1” and 1-3/4”. For best results, set the phone timer so you don’t have to touch it and cause vibrations.

Advanced Student Microscope With extra-sturdy construction, international-standard DIN, fully coated eyepiece and objectives, this is an excellent student microscope. It provides good resolution and centering, and maintains focus when objectives are changed. Stage clips, rack stops, smooth positive mechanical movements, built-in illuminator, coarse and fine focus.

• Magnification: 40X, 100X, 400X, 1000X (oil)

• Objectives: 4X, 10X, 40X, 100X (oil) spring-loaded, parfocal, centered achromatic.

• Eyepiece: 23mm 10X wide field with pointer.

• Illumination: Built-in 5 watt fluorescent, 110V with condensor.

• Stage Size: 120mm x 110mm with locked-in stage spring clips.

• Focusing: Rack and pinion, coarse & fine controls.

• Weight/Height: 8 lbs/14".

• Viewing Angle: 45°

Choose either the 25- or 100-slide selection of 3" x 1" prepared microscope slides from Celestron®, both in sturdy hinged wooden cases. The selections include a wide range of bacteria; plant, animal and human tissue; insect or reptilian specimens; and a list of each of the slides.

And no need to hang on, because this large, 9-3/8” x 6-1/2” Fresnel magnifying lens with approx 2X magnification is in a black plastic frame with folding legs. Stands approx 4” above a tabletop but stores flat. Also comes with a lightweight cord, so it will hang from your neck for close work sewing, knitting, or whatever. Try it once and you’ll wonder how you got along without it.

This excellent, ultra-light, refractor telescope kit from Celestron™ and the National Park Service Foundation comes with a custom backpack so you can tote it to where you can actually see stars. Offers super-fast, no-tool set-up, and weighs just 16 oz. Has a 60mm objective, 5X24 finder scope, a collapsible tripod that extends from 16” to 48”, a 1.25” moon filter, 8mm and 20mm eyepieces, a 3X Barlow lens, a 45-degree erecting prism for land viewing (so you can spy on the bad guys!), a compass and a tiny white LED flashlight with (3) button-cell batteries.