100-Pack Autoclavable Thin-Wall Test Tubes with Rim, 12mL, 100 x 16mm, Borosilicate Glass Diameter_300mm the standard 30-60-90 geometry giving

the standard 30-60-90 geometry giving classic deviation behavior for comparing against equilateral and wedge geometries

letting students rub one half against the same cloth and compare insulator and conductor behavior in triboelectric charging

Offering four-decade rotary selection from 0 to 11

covering everything from water and CO2 through alkenes

100-Pack Autoclavable Thin-Wall Test Tubes with Rim, 12mL, 100 x 16mm, Borosilicate Glass Diameter_300mm the standard 30-60-90 geometry givingPack of 100 autoclavable thin wall test tubes in borosilicate 3. 3 glass provides sterilizable vessels for biology, chemistry, and microbiology applications.