1. Made of 304 stainless steel, anti-rust and durable to use.2. The I-beam design provides strength and stability.3. Easy to use and can be adjusted as needed.4. Used to hold together two workpieces by turning the screw, for assembly, fastening, gluing and welding.5. Designed for woodworking, metalworking, assembly, construction and household clamping projects.Specification:Jaw Opening: 160mm / 6.3-inchClamping Range: 118mm - 148mm / 4.65-inch - 5.8-inchClamp Thickness: 6mm / 0.24-inchThread Size: M12*1.75mmClamp Size: 172mm x 50mm x 56mm / 6.77-inch x 1.97-inch x 2.2-inch (L*W*H)Package Content:1 x C-Clamp.