This small stainless steel fine-mesh filter is 2" dia x 1-1/2" tall. It has fine mesh sides, a solid plastic bottom and slight lip around the top. Nice for small filtering jobs, but would also make a passable basket for a gerbil hoops game.

Put 'em on a sheet of paper (or glass, or plastic, or any number of things), put a magnet underneath, and watch them do what iron filings do when they meet a magnet. Weird fun coupled with basic physics. Our each is 3/8 oz, which is approx 146 gazillion iron filings, and pure hell to clean up unless you have one of our handy-dandy aforementioned magnets!

Don’t put this shaker jar in the wrong place--it’s just a clever way to store and use iron filings for a physics class. You’ll get a clear glass spice jar-looking jar with a screw cap that lets you dial small/medium/large openings. Inside is 12 oz of iron fillings, 40 to 80 microns, the equivalent of grains of sand.

Perfectly suitable for all your non-professional ping-pong-ball applications. These guys are white-ish, with a visible seam, and are 37mm in dia, as opposed to the standard 40mm or the former standard 38mm professional ping-pong balls. Priced so you can buy enough to do any number of clever things with them.

Sir: It is indeed a shame what our country has come to. I refer to these foam gaskets I recently purchased. They are black, 1-1/2" OD x 1" ID x 3/16" thick, very dense and spongy. I have found them to be excellent vibration dampeners in various mechanical devices in my home and shop. But why did they cost me so little? This low price is an outrage that I worry could lessen the value placed on these fine products by the youth of today. The city council should investigate this matter. -name withheld

They're from parts unknown and drop-offs from we know not what, but we have on our hands quantities of unused black and white PVC tubing, 1-1/2" OD x 1-3/8" ID x Approx. 7-1/2" White and/or black. We'll pick (4) pieces, our choice. Think percussion instruments or build a tubular zebra.

Closest we can come is that this was part of a meter kit, but we don't know what part. It's a 1/2" long x 3/8" wide nearly triangular black-plastic tube with sheave through the center, attached to a 7/16" x 13/16" thin wire frame with a mounting hole. Looks like the rear sight on Spock's phaser, but may have been a bobbin or wire guide of some sort.

Can you say bulk buy? These plastic (polyethylene) dip tubes are 129mm long x 8mm OD x 6mm ID with 45-degree offset slices at each end, sold in 7,000-piece cases only. Haven't been in a lab since high school? These are 5.07" x .31" OD and .24" ID and are just screaming for an art or craft project.

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

This small stainless steel fine-mesh filter is 2” dia x 1-1/2” tall. It has fine mesh sides, a solid plastic bottom and slight lip around the top. Nice for small filtering jobs, but would also make a passable basket for a gerbil hoops game.

You've found perfect tires for your model of an LEV-SFC (that would be Lunar Exploration Vehicle, Stable Foot Class). StableFeet" are groovy blue plastic tubes, closed (except for a small hole) at one end. They're 3-1/4" long, and are made to fit over a standard 1-1/8" steel tube, like, say, the T-legs of an ironing board. If you don't use the striated rubber extenders to stabilize an ironing board or dress up tricycle handlebars, though, you'll have more left for your MEV-SFC. Our each is a package of (4).