BOKER Plus 01BO010 Credit Card Knife with 2-1/4 in. Straight Edge Blade, Black Titanium liner 2-1/4 in. straight edge constructed of 440C stainless steel Can be worn in shirt pocket or carried in wallet Includes ball chain for neck carry 2-1/4 in. blade length. 2-3/4 in. closed length. 1.1 oz. weight Limited lifetime warranty