C-Clamp 11 in C-Clamp with Swivel Pads Capacity 3-3/8 in Throat Depth 2-5/8 in Screw Mechanism Easy Release Trigger Micro-adjustment Nickel Plated Alloy steel For Welding Sheet Metal or Woodwork 6 in Size for Working with Smaller Pieces or for Holding Materials in Tight Spaces 18 in Size for Clamping Around Large Objects Automotive Applications Government Specifications GGG-W-00649 Includes Swivel Pads