Material: stainless steel. Dimensions: Length, width and height are about 1.3″*1″*1.2″, and the thickness can be 16-25mm/0.6-1 inch. Purpose: This C clamp is specially designed for carpenters, joiners, welders, construction workers or DIY enthusiasts. Suitable for general clamping needs. Nice design: This C clamp is made of heavy cast and forged steel frame, and the I-steel design adds a certain degree of strength. The sturdy clamping design can ensure that the clamped object is not easily deformed. Easy installation: With adjustable positioning screws, it can be easily clamped on any desk, and the clamping thickness is about 0.6-1 inch.