Application: Heavy-duty C clamps are suitable for assembly, fastening, bonding and welding in metal processing and woodworking Material: C clamp is made of stainless steel for durable and corrosion-resistant construction. Commodity dimensions: The length of the C clamp is about 32 mm/1.25inch, the width is about 24 mm/0.94inch, the opening is about 30 mm/1.18in, and the clamping range is 16 mm to 25 mm.(0.63inch to 0.98inch) Easy to use: The C clamps have M8 threaded holes with adjustable positioning screws, which can be easily clamped to any flat surface.firm and stable Package included: 4 x sliver stainless steel C clamp, Weight: 0.7275254646 Pounds, Manufacturer: WANGCL