Hexagonal Hollow Stopper with Flat Bottom, 29/32, Borosilicate Glass Plastic Labware_Plastic Burettes 7 inches with five 50mm

7 inches with five 50mm steel spheres

Sixteen-SWG bare constantan wire on a 125g reel — a copper-nickel alloy with a low temperature coefficient that holds resistance steady across a wide temperature range

sized for individual student-lab use in simple-machines units

Eye model seated in a bony orbit socket illustrates the protective skull relationship of the eye alongside its internal anatomy in a combined teaching unit

Hexagonal Hollow Stopper with Flat Bottom, 29/32, Borosilicate Glass Plastic Labware_Plastic Burettes 7 inches with five 50mmHexagonal hollow stopper in borosilicate 3. 3 glass features 29 32 cone with flat bottom for sealing ground joint vessels and chemistry apparatus.