These porcelain Spot Plates for observing reactions with color changes are useful for micro chemistry applications.
This is a 20ml tall clear glass and stopper form weighing bottle.
These superior quality unmounted Double Convex Lenses with ground edges are useful for teaching a variety of optical principles.
The economical Aneroid Sphygmomanometer is sturdy and dependable. It measures blood pressure with Velcro arm cuff and easy to read dial. It comes with its own vinyl storage case.
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