ProPette™ Controllers are lightweight (only 6.3oz/170g) and designed to fit comfortably in either the right or left hand. The natural feel of the ergonomic body design, the computer balanced weight distribution and the low pressure fingertip control buttons…all combine to provide a more comfortable pipetting experience. And now the Propette controller includes the patent-pending Quickstand™ retractable stand. Which allows the instrument to be set down on the bench without risk of contamination.