Karter Scientific 12 Pack 50mL Beaker, Low Form Griffin, Borosilicate 3.3 Glass, Spout & Printed Graduations (212D23)12 Pack 50ml low form glass Griffin beaker with spout, single scale, graduated Height: 60mm (approx); outer diameter: 42mm (approx) High quality inert 3. 3 borosilicate glass Extra large marking spot ASTM Specification E960, Type I requirements Griffin Low Form Beakers are made of 3. 3 borosilicate glass. Single Capacity Scale, Heavy Duty, beaded rim and a spout designed to have excellent pouring characteristics., white marking spot, and uniform wall