STURDY MATERIAL: Made of high quality 304 stainless steel, the surface is electroplated and polished, corrosion and rust resistant, bright in color, very sturdy and not easy to break. EASY TO INSTALL: The opening is M8 threaded hole, with adjustable positioning screw, 30mm/1.18inch opening, it can be easily fixed on any desk and the direction of the clamp can be adjusted according to your needs. APPLICABLE SIZE: C-clamp length 34MM/1.34inch, width 24MM/0.94inch, opening 30MM/1.18inch, range clamping range 16-25mm/0.63-0.98inch. PRACTICAL DESIGN: This C-shaped clamp is made of a cast and forged steel frame.The top/side/bottom of the C-shaped bracket is equipped with M8 threaded holes, which further improves the stability of the clamp and provides reliable strength. VARIOUS USES: This C-clamp is specially designed for menu workers, welders and construction workers. It is suitable for general clamping needs and is used for joining, fastening, bonding and welding in metal processing and