Pack of 100 rimless Test Tubes made of high quality borosilicate 3.3 Glass. 15mL capacity. Tubes feature fire polished, flat edges with uniform, 1.2mm walls. Each tube measures 125mm (5″) tall, with an outer diameter of 16mm (0.6″).

Autoclavable, with superior chemical durability. Low temperature gradient- can withstand direct flame, high temperatures & thermal shocks. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point 515°C | Annealing Point 565°C | Softening Point 820°C.