Cast iron malleable head offers maximum strength, The sliding head quickly sets the clamp to the required capacity, Serrated grooves on the corrosion resistant nickel plated bar prevent slippage in use, Plastic pads snap fit to both the swivel shoe and the fixed head, The high quality wooden handle provides a firm and comfortable grip, Pinched metal end prevents the sliding head from falling off the bar, Average clamping force of 300kg (660lbs),