Pipette class 'A' 25ml, Borosilicate glass, Blue Printing bulb form, Blue-EIS-CH0559G offers a thoughtfully designed, durable resource for hands-on learning. 25mL capacity 0.030 tolerance Class A Glass Individually wrapped Clamp not included 20.5" Eisco Labs 25mL Volumetric Pipette, Borosilicate glass, 0.030 tolerance, Class A Glass, Individually wrapped Calibrated for delivery. 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.