BLF Wallet Sized Credit Card Knife/Camping Knifes, Finger Blad ULTRA THIN-Knife's total thickness 2.5 mm Credit card sized & small enough to fit in wallet LIGHTWEIGHT-Blade alone is 15 grams.Total weight of Sheath & packaging 25 grams 86 x 50 x 3 mm SAFETY-Blade is stored in protective plastic sheath. Hilt on blade protects fingers when in use RAZOR SHARP and DURABLE: cutting edge long at 65 mm and surgical blade technology ensures Durable ATTRACTIVE and MULTI-PURPOSE:resembles the beak of an eagle,can use to open a bottle