These pipettes are made from borosilicate glass in compliance with ASTM specification E-1293. Color-coded. Individually serialized and certified. Calibrated to deliver. Printed with durable amber markings. Additional Info: Pipettes, Mohr, Class A, Individually Certified, 25ml, Pack Of 5 Package Size(L x W x H): 18.4 X 2.2 X 1.6 (IN) Categories: Pipettes, Glass HTS Code: 7017.90.5000 UNSPSC: 4.11215e+007 Country Of Origin: INDIA