Manufactured in stainless steel grade AISI-304 . Electro-polished. Burr free to protect, wraps and eliminate user injury. Smooth round Edges. Side wall perforated to protect sharp instruments edges and tips from damage. The perforation hole size is 2.0 mm. Meet all requirements of automatic washing and sterilization of all kinds of instruments. Separate lids are available with single, double and detention frame. Inner mounted drop handles. Top and bottom frame diameter 5.0 mm. Base available in wire mesh with opening square 6.0 mm, wire diameter 1.2 mm. Stacking frame can also be available on request.