This specific gravity bottle with a 25ml capacity is manufactured from high-quality borosilicate 3.3 glass, providing superior chemical durability and thermal shock resistance. The unit measures 2.25" tall, 3.15" tall, 2.75" tall, 1.75" tall. Borosilicate glass is autoclavable and can withstand high temperatures and thermal shocks, with heat tolerances rated at a Strain Point of 515°C, Annealing Point of 565°C, and Softening Point of 820°C.