This Hamilton SoftGrip precision pipette requires 50% less actuation force than competing brands. Less user fatigue results, due to the soft ergonomic shape and low plunger force. The separate tip ejector button is east to reach. Every pipette is calibrated at Hamilton with standards traceable to NIST. A certificate of calibration documenting the product's accuracy and precision is provided in the package, along with non-wettable recalibration labels for field service and recalibration. The pipette is color-coded for easy volume identification, and the entire pipette is autoclavable without the need for recalibration.