Specifications:NameClamping Block SetColorSilverMaterialHardened SteelSizeApprox. 2.5*5*7.5 cm/ 1*2*3"(L*W*H)Quantity1x Spoon5x Screws 2x 1-2-3 Spacer Feature:▲ Make ounting work for precision▲ It is a hexahedron which is made of hardened steel,ground and hardened on all sides.▲ Used for set-up, lay..