Product overview: 420 stainless steel overall, fine, both sides are smooth and bright, export product, with indications on drawings, sharp, sturdy steel body, saw is even more flimsy cards with double rows of jagged teeth. Block of high hardness stainless steel molding, high strength and a sharp edge. Similar in form and credit card size, along with black leather protective cover, to avoid cutting edge poisoning themselves, and to fit into a purse to carry. So compact and practical life-saving card loaded in wallets or hanging on a key ring, either live at home or tourism, fishing, camping, carry a simple Toolkit