Ring Standard Pipette Scale Pipette 5ml Graduation Accuracy 0.05ml Glass Pipette - Educational Equipment - AliExpress
CHEM SCIENCE INC 123.302.11 Pipette Volumetric with One Mark, Accuracy As Per Class A, Capacity 15 mL Individually Serialized (Pack of 6): Amazon.com: Industrial & Scientific
Glass Pipettes: Types, Handling, and Uses • Microbe Online