Set of 7 unbreakable and graduated measuring cylinders with embossed calibration for easy reading. Wide, stable bases. Chemical and acid resistant. Autoclavable and microwavable. Made of tough transparent polypropylene plastic. Includes: 10 mL, 25 mL, 50 mL, 100 mL, 250 mL, 500 mL, and 1000 mL.