Includes all of the features of the Diamond pipettor with the addition of a super-soft elastomer grip that minimizes fatigue of hands and fingers. The unique padding not only reduces thumb stress, but also minimizes the transfer of body heat to the pipette, resulting in consistent accuracy. All Diamond pipettors come with a certificate of calibration, a recalibration tool kit, and full one-year warranty. Calibrated in an ISO 17025 facility.