Corning Pyrex 100mL graduated cylinders are single-metric calibrated "To Deliver" (TD) and have white enamel graduations. Height: approximately 254mm. Outer Diameter: approximately 29mm. Graduation interval: 1mL. Tolerance +/-: 1mL. Not sterile. Material: Borosilicate Glass Code 7740. Pourout top. No stopper. Supplied with plastic bumper guards to reduce accidental breakage (for replacement bumper guards see Cat. No. 3066). Corning #: 3024-100.