250ml capacity low form Griffin beaker made of Borosilicate 3.3 Glass. Beaker features white graduation lines marked every 50ml as per DIN 12231. Spout for easy pouring. Uniform walls provide excellent strength against breakage. Beaker stands 3.75 tall and has an inner diameter of 65.8mm and an outer diameter of 68mm. Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515?C | Annealing Point 565?C | Softening Point 820?C. Eisco Labs proudly manufactures its own products using state-of-the-art equipment and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.