OLFA Touch Knife TK4Y Model 9535 is a pocket-sized, multi-purpose knife that features a stainless steel blade, blade slide lock and hanging hole to easily slide on to your keychain. Can be used for a number of purposes and easily fits in your pocket, purse, desk or glove compartment. Commonly referred to as the handiest little knife in the world. Color is Yellow. Ideal for use in arts, graphics, crafts and hobby for both consumer and industrial applications.