LabSciences 20-KP Autoclavable Miniature Pipettor for Test Kits, 20 microliter Volume, +/- 0.6 percent Accuracy Economical, low cost with industry's best price/performance Optimum size, 130mm long with the feel of a standard pipette Precision design, excellent accuracy and performance Two stage plunger, blow-out step facilitate's last drop dispensing Fully autoclavable at 121 degree C and 15 psi