Unique hook-shaped design reduces hand fatigue. Autoclavable manifold rotates 360 Degrees, allowing optimal hand position. Individually replaceable tip cones allows easy in-lab servicing and cleaning. New! dual-ring design improves tip fit on 0.5 - 10uL and 2 - 20uL sizes. Shipped complete with stand, reagent reservoir, replacement V-rings, and tip box with two refills. Its ergonomic grip provides long-term comfort for small or large hands. The unit provides eight hours of full speed operation on a four-hour charge. LED indicates when two hours of pipetting time remains. A slide-on cover provides easy battery access.