DuoKlamp®, large surface one handed clamp. Clamp or spread with the turn of a button, no tools necessary with the intelligent release mechanism. Jaws are designed to resist flex and are capable of withstanding up to 260 lbs of clamping force. Soft pressure caps slide off easily and prevent marring of wood by distributing pressure over a greater area. 12” Clamping Capacity, 3-1/4” Throat Depth, 260 lbs Clamping Force and 2-3/4” to 14-3/8” Spreading Force. Sold in 6-pack.