WORKPRO 12-Inch/300mm Heavy Duty Bar Clamps for Woodworking, 300LBS One-Handed Clamp/Spreader, Quick Release Clamps, Wood Clamps Set for Hand Wood Working, 2PC by Amazon.co.uk

• \u3010Basic Parameter\u3011Max Jaw Capacity: 12"(300mm) for clamps/19"(485mm) for spread. Throat Depth: 3"(80mm) from bar top of pad. Weight: 650g x 2.

• \u3010300LBS/136KG High Clamping Force\u3011A great, defined, rail construction makes sure the clamps do not slip and tighten very effectively when really putting the pressure on. (rated up to 300lbs/136KG)

• \u3010Quick Release Clamps\u3011The quick-release latch makes it so easy to take them off your project or adjust the fix in seconds.

• \u3010Clamps to Spreader\u3011The quick-change button design allows the F clamps to be a spreader as well. Just press the red button to take the jaw off and then reverse it before putting it back in, you will get the spreader you need.

• \u3010Non-marring Pads\u3011Larger pads provide a larger area of thrust surface. More balanced force and parallel clamp. Non-marring, non-slip texture protects your project. Perfectly sized clamps for a wide range of woodworking & DIY projects as well as model-making, and crafts.