6-in-1 Multifunction Tool: It includes a knife, pry bar, bottle opener, hex wrench, Phillips screwdriver, and keychain. Changeable & Easy to Detach: It uses #10 scalpel blade and you can change it effortlessly. Meticulous Design: The Otool 2 is a keychain tool designed to be used with key rings for carrying keys and other small EDC items. High-end Material: Made from TC4 titanium, Otool 2 is super durable and corrosion-resistant. Easy to Carry: Measures only 2.71 inches in length,1.56 inches in width, and 0.18 inches in thickness, so it&';s super compact and easy to carry.