The Knipex Alligator XL Water Pump Pliers, No. 88 01 400, feature a forged box-joint design for very high stability, an 11-notch adjustment for a gripping capacity up to 3-1/2", and hardened teeth to increase gripping capability. The hardened teeth mean the pliers won't slip off the work piece and they require low hand force. The pliers have a thin head and joint area, which enable it to fit into tight, hard-to-reach places. The 16" pliers weigh less than 3 lbs and offer a built-in pinch guard to prevent injury to hands or fingers and plastic-dipped comfort handles.