Product Description Aluminum Alloy Material-- Made of Aluminum alloy material, alloy is more sturdy than other metal, not easy to deform. Non-Slip Design-- Rubber pad, which can increase the friction between the table and the universal c-clamp, anti-slip and durable. Adjustable C-Clamp-- The universal c-clamp can be adjusted within 5cm/1.96, you can adjust according to what you need. Wide Application-- Suitable for table, desks, carts, benches, worktables, posts . What You Get--2pcs universal c-clamp; total size:7.7cm*2.5cm*8cm(3.03*0.98*2.36); 6mm thread holes and one 6mm thread hole. Aluminum Alloy Material:Made of Aluminum alloy material, alloy is more sturdy than other metal, not easy to deform. Non-Slip Design:Rubber pad, which can increase the friction between the table and the universal c-clamp, anti-slip and durable. Adjustable C-Clamp:The universal c-clamp can be adjusted within 5cm/1.96, you can adjust according to what you need. Wide Application:Suitable for table, desks, carts, benches, worktables, posts . What You Get:2pcs universal c-clamp; total size:7.7cm*2.5cm*8cm(3.03*0.98*2.36); 6mm thread holes and one 6mm thread hole.