BEST SELLERS

This small chrome constricting clamp is designed for controlling IV drips, but no doubt will inspire other uses for crafters, jewelry makers and those who want to control the flow from small pumps. Measure 2" x 1-1/4" OA when fully open. Flat clamp screws open to approx 5/8". The clamping surface is approx 3/4" x 1/4".

You’ll get (10) pieces of clear acrylic medical grade tubing for your water fountains, Halloween displays or other hobby projects. Each measures 32” long x 5/32” OD x 1/8” ID. Made right here in the US of A.

Clamps. Whatever. These measure approx 5" long x 1-1/2"' at their widest. They open to about 2", though, so they'll not only grab test tubes, they'll pluck cubes from an ice bucket. Or carry a few stems of asparagus. And you do get a pair, so you could always have a tong war.

Poly Erlenmeyer. Sounds like a fun date from Dusseldorf, but it's really a 250ml polypropylene flask with a non-gasketed screw cap. Measures 6" tall x 3-3/8" dia at the bottom with a 1-1/8" ID mouth. And unlike you it's autoclavable.

They're gray rubber stoppers, 3/4" dia at the top, threaded at the bottom to fit 17mm ID bottles. They're 7/8" long OA, with a threaded portion 7/16" long. Which doesn't matter a whole lot if you're using them for their most obvious use, which is to glue them to your neck for the world's absolutely best Frankenstein costume!

Our each is box of (100) round filter papers, 12.5cm (approx 4.92") dia x 0.15mm thick (#1 size). No lab? Think craft supplies, throw-away coasters, or little caps to keep the gnats out of your pina colada.

The Graduate devotee knows the importance of plastic. To fill the need we offer these fine cylinders of the hard milky white polypropylene persuasion, to help you measure out your chemicals. With a large bases for stability and spouts for pouring, they are just like their glass cousins, except these are cheaper and not heat-resistant (each is marked 20° C ?!). The graduation increments and total volume are shown as increment/total in milliliters.

Get 5ml of microscope slide stain in a nifty plastic squeeze bottle with a dropper top and white plastic screw cap. Bottle is approx 2" tall x 3/4" dia, like a standard food-coloring dispenser. You pick red or blue stain.

This large, excellent quality triple-beam balance scale offers many years of precise measurements. It measures 17" long x 4" wide x 6" high, has a 6" dia plate, and comes with (2) kilogram and (1) 500g counterweights. Maximum capacity is 2,610 grams with a 0.1g resolution. Hardened steel knife edges, self-aligning agate bearings, magnetic damping mechanism. Durable cast metal base for stability.

You pick from our clear glass vial collection, all with gasketed black-plastic screw caps. The small vials hold approx 4ml and measure 1-3/8” tall x 9/16” dia with a 9/32 (approx 7mm) ID. The larger vials hold approx 6ml and measure 2-1/4” tall x 19/32” dia with an 11/32” (7mm) ID.

Or funnelette? Whatever. It's a polypropylene mini-funnel, for putting a little something through little openings. Measures 2-1/4" long OA, with a 35mm dia mouth and a fluted, 4mm ID neck.

From Bomex, this glass filtering flask is 500ml, stands 7" tall x 4-3/16" dia at the base, with a 1-7/16" dia mouth. The flask takes a #8 stopper and a 9mm OD outlet nipple.

In clear plastic. They measure a tad over 4-1/2" long x 1-1/8" dia, graduated from 5 to 50ml in 2.5ml increments, with a screwcap and a white writing stripe. Lost your centrifuge? They're perfect for saving quarters.

Up close and personal. From My First Lab™, these prepared microscope slides are Biology 101 in a box. You’ll get slides of cells from a human stomach, heart and blood, plus brain and kidney cells from a small mammal. For ages nine and up.

See clearly with this 20X stereo microscope; coins, fossils, circuit boards, bugs and splinters have never been larger. Dual 10X eyepieces provide a stereoscopic view with a 2-1/2" to 3-7/8" working distance while an LED illuminator powered by (2) "AA" batteries (included) brightens and a black/white stage plate with aluminum clips improves your contrast. Eyepieces are also adjustable for those who like to play with interpupillary distance and it stands 10-1/2" tall. Great for students, hobbyists, crafters and more.

But science teachers can't work without them. Experiment with this good-quality manual vacuum pump made of durable polychloroethylene plastic. Works with a pistol-grip action and pulls up to 2" Hg. Includes a 17" length of clear vinyl, 1/4" ID tubing, and a release valve.

Microscopy marches on. This 20-500X portable digital microscope with a video recording function has a 3” LCD, 5Mp sensor, resolution between 1.3-12Mp as well as VGA, 8-LED illumination and a rechargeable battery, which will power it for 4 hours. Includes a 5 volt adapter for charging, a ball and socket pedestal stand, A/V cable, carrying pouch and chamois. Does some nifty tricks, including extrapolated measurements from kilometers down to microns. Measures 5” x 4” x 1-1/4” overall and weighs just 4 oz. It’s from Levenhuk®, with a lifetime warranty.

Just like on TV! These are what all your fashion-forward crime scene investigators are wearing this year: black latex exam gloves from Phantom™. Powder-free, non-sterile, with a textured surface to improve your grip. These gloves have received high ratings from tattoo, hair salon and beauty professionals. The dark black color stands out and masks stains, inks and dyes during use. Our each is a box of (100) Medium or (90) Extra-Large gloves.