This green, rubber-coated 4X binocular from Celestron® is kid-sized but otherwise very high quality with coated lenses, an 18" neck cord, belt-mount carrying pouch and lens cloth. Has 30mm objective lens diameter and a 4.3 degree X 225-foot field of view at 1,000 yards.

Small enough to fit into the belt-mounted black canvas carrying case (4-3/8" x 3" x 1" thick), but they open up to be plenty big for most binocular needs. These 10X25 binocs have glare-reducing coated lenses, a thin neck-strap, adjustable focus, water-resistant and easy-to-hold rubber skin, rubber eyecups and fine-tuning for the right eye.

When you peer through your magnifying glass at this specimen, or focus your microscope on it, even at the lower magnifications which work best, you're looking at one big bug. Make that (4) big bugs. The insects are real, encased in clear acrylic blocks 1-3/4" x 1-1/4" x up to 11/16" thick, and ready for inspection. Set 1 includes a scorpion, giant ant, wasp and a flower bug. Set 2 is a cricket, locust, yellow leaf beetle, and crab. No, not a crab louse or a crab spider, but definitely a crab ugly.

For the shaving kit, the campground or the kids, nothing says no nasty glass shards like plexiglass. This unframed, unbreakable, back-surfaced mirror is 3-1/2" x 2-1/2" x 3/32" thick. Please note that there is a protective film covering the front of the mirror which you need to peel off before using.

This monster magnifier on a gooseneck stand doubles as a reading lamp. The 3-1/2” dia, 3.5X magnifying glass is surrounded by a bright 12W 1200 lumen LED ring of lights, all on a 12” gooseneck rising from a 6-1/4” x 5-1/4” x 1-1/2” thick base with a 4-foot power cord. The magnifying lens has a flip-down cover, which converts it to a reading lamp. Comes in mysterious black and inquisitive white; we'll choose the one that's best for your feng shui.

Work like a watchmaker with this extremely steampunkish clip-on triple loupe. In brass-plated steel, it clips on the temple of a pair of glasses with the three 15/16” dia lenses (2X, 2.5X and 3X) on 1-1/2” long arms that swing in and out and are adjustable via set screws. The spring clip for the glasses opens to 5/16”. Working distance is short like all loupes, but you’ll look extremely cool.

Microscope glassware for examination of blood, pond water, mold, and other minutiae. All of the microscope slides are optically clear glass 26mm x 76mm (about 1" x 3"), between 1mm and 1.2mm thick. The well slides, of course, have a concave well to hold a drop of liquid. Our each is a package of (12) well slides, or a box of (72) standard slides with ground or beveled edges. Cover glasses are the smaller and very thin pieces of glass used as the top of the glass slide sandwich. They are often used temporarily by simply dropping them onto a drop of liquid to flatten and spread it and to minimize evaporation. More confident microscopists will cement them in place to permanently preserve a specimen. Our each is a package of (100) cover glasses 18 mm square, #1 thickness (0.13mm to 0.17mm). If you need one, you need both.

No, don’t, but if you do, this one’s likely to survive because it’s rubber-coated from stem to stern to lens caps. From Lenenuk™, it’s an 8X42 monocular with BaK4 (BaritleichKron--German for "Barium Crown”) multicoated glass eyepiece and objective lenses, and a twisting eye cup. Comes with a wrist strap, chamois and velveteen pouch. Has a 6.3 degree field of view and 8X magnification with a minimum focal length of 3 meters. Measures 6-1/4" x 2-1/8" and has a standard mount on the bottom, plus a lifetime mfr’s warranty.

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. You'll need two AAA batteries for power.

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.

These flexible, clear acrylic magnifiers are the same size and thickness as a standard credit card at 3-3/8" wide x 2-1/4" tall x 017". They magnify 1.25X via a magnifying window that is just a tad smaller than the entire thing. Keep a few in your wallet and pass them around to your AARP friends. As for you, you’ll never squint again when you’re on the phone ordering bargains from us and can’t read your credit card number.

Our best jeweler's loupe, this has a professional-quality, full 10X triplet lens. A ring of (6) white LEDs around the 13/16" glass lens ensures an even distribution of light. Housing is an angular, 7-sided teardrop shape 1-3/4" x 1-1/8" that folds out of a metal case with a strap hook. Tucked into the small leather pouch it comes in is a spanner wrench, in case you ever need to replace the (3) button-cell batteries.

Polished glass equilateral prisms. Equilateral because each edge of the end is the same length, 32mm. Thus, as all you geometry students know, each of the angles is also the same, 60 degrees. These are school grade and are fine for decorative and demonstration. They do a nice job of refracting light to produce a nice rainbow-like spectrum, but are definitely not up to instrumentation standards. The missing dimension, length, is shown below.

For students or professionals, this Celestron® Deluxe Handheld Digital Microscope that captures still images and videos is a terrific computer accessory. Plug the USB 2.0 cable into your computer's port and take advantage of the built-in, upgraded 2MP CMOS sensor, 10X to 200X magnification, and 8-LED illumination. It features a 1 sec. to 1/1000 sec shutter speed, 1920x1080, 1280x720 and 640x480 resolutions, max 30fps videos, 10mm to 150mm manual focus and a 2 element glass lens with IR Cut and EFL 158mm. The 4-oz, 4-1/4" x 1-1/4" dia scope may be handheld, or slipped into its metal stand for steadier viewing. Includes CD-ROM software with measurement function and note-taking and a calibration tool. Works with Windows 7/8/10 and MAC OSX 10.12 and up. Very cool.

You won’t misplace this Sherlockian magnifier. Measures 11” long overall, with a 5" dia 1.5X acrylic lens with a 1” 3X window inset. Handle is 5” alone and the lens has (3) white LEDs for the better to see with. You add (4) “AAA” batteries in the handle and start solving mysteries immediately.

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.

From Celestron©, who rules the skies! These are our best-selling binoculars! The very nice pair of 15 X 70 binoculars have multi-coated optics to reduce refraction and a weather-resistant rubber housing, and are a relatively light 5.2 lbs. They come with a carrying case, chamois and neckstrap, plus a handle/adapter for a standard 1/4" - 20 mount for a tripod. A lifetime warranty is available from Celestron©

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.