2000ml graduated measuring cylinder made of high quality, heavy duty Borosilicate 3.3 glass. Spout for easy pouring, and hexagonal base for extra stability. Class A tolerance, ±10.0ml as per DIN EN ISO 4788 standard. Blue printed graduations and specifications. 20ml subdivisions. Cylinder stands 22.25" tall, with a base measuring 5.8" wide. Inner diameter of cylinder body measures 79mm (3.1"), and outer diameter measures 83mm (3.25"). Autoclavable, with superior chemical durability. Low temperature gradient- can withstand 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. Calibrated to contain.