[STURDY MATERIAL]Heavy duty 304 stainless steel C-clamps made of high quality 304 stainless steel, the surface is electroplated and polished, corrosion and rust resistant, bright color, very strong and not easy to break. [PACKAGE AND SIZE]Each package includes 4 heavy duty C-clamps. Length x Width x Height: 32mm x 24mm x 30mm. The opening is 30mm / 1.2inch and the clamping range is 16-25mm / 0.6inch - 1.0inch. [STURDY DESIGN]The C-bars are made of heavy cast and forged steel frame. The sturdy I-steel construction of the clamp can ensure that the clamped object is not easily deformed. [EASY TO USE]The C clamp comes with adjustable adjustment screws that can be adjusted as needed, making it easy to attach to any desk. The high-performance locking C clamp can be easily removed, saves time and effort, is smooth and does not hurt your hands. It is also ideal for use in unfavorable spaces or difficult angles. Very easy to use, regardless of experience. [WIDE APPLICATION]This heavy-duty C