XP single handed clamps from Irwin have 3 times more clamping force than any others in the market. 
Heavy-duty I-beam bar and a non-explosive release mechanism.
New large pads for more secure clamping.
New stabiliser on the bar. 
Improved I-beam bar.
Can clamp up to 250Kg of pressure.
Can be used for clamping and spreading with an easy quick change action.
Ideal for most holding applications.