Set includes 20 Pcs 90mm x 15mm ,20Pcs Plastic Transfer Pipettes (10Pcs 3ml,10Pcs 2ml) Special Material:Ethylene oxide , unvented, with lids, easy to use. Flat bottom ensures even distribution of media and organisms. The lid protected the sample from contamination and facilitated its viewing under a microscope. Prepare samples in hospital environments, food science or the pharmaceutical industry, it is also an perfect choice for science classrooms and household use. Multifunction:Laboratory analysis for ,biological,scientific research and other activities, suitable for general training. Colour:transparent Material:plastic Package Contents: 20 X 90mm x 15mm 20 X Plastic Transfer Pipettes (10Pcs 3ml,10Pcs 2ml) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.