Sterile disposable serological pipette. Easily read sample volumes. Crystal grade polystyrene. Can clearly see fluid sample. Individually wrapped packaging: two ways to open: peel or pop-through. compliance. Sterility: gamma irradiated. Applications: For tissue culture usage or any non-toxic solution that requires aliquoted or aspirating/dispensing in a sterile environment. 25mL Pipet size. 0.25 Graduation increment. 7mL Overfill capacity. Color code is purple. Tip measures 1-17/32" length by 5/64" interior diameter by 3/16" outside diameter. Mouthpiece measures 1-1/64" length by 3/16" interior diameter by 19/64" outside diameter. Extrusion measures 9-13/16" length by 33/64" interior diameter by 19/32" outside diameter.