Ultra thin credit-card sized utility knife that fors comfortably into your wallet. At 2.2mm thin, the 13-gram CardSharp transforms from a credit card sized sheet into a well-balanced knife with a sturdy handle. The waterproof Card Sharp features a nearly 3-inch long blade made from surgical steel, and the polypropylene handle is guaranteed to last a lifetime of unfolding and folding. A clever locking mechanism prevents accidental cutting or blunting when the Card Sharp is closed. Ensure you're always prepared with the Card Sharp Credit Card Knife. Dimensions (folded): 3.4" x 2.15" x 0.08" Dimensions (unfolded): 5.75" x 1.5" x 0.375" Blade: 2.5" (65 mm) cutting edge | 2.99" (76mm) total length Weight: 0.45 oz (13 grams) Handle guaranteed for a lifetime of folding and unfolding Thickness of two credit cards (2.2 mm) Surgical steel blade Waterproof Machine washable! Authentic Iain Sinclair model