25 ml Plastic Graduated Cylinder, KeL Scientific KS-2111 Cylindermanufactured from polypropylene plastic Melting point of 275 F (135 C) Features a lip to help contain spills Contains a pouring spout to help with pouring Cylinderhave molded in graduations that will not rub off Numbered graduations are at the 5ml, 10ml, 15ml, 20ml and 25ml Approximate height is 5 1/4 inches Approximate diameter of top of opening is 7/8 inch(outside diameter) Approximate diameter of hexagonal base is 1 3/4inches