This high-quality Key Chain Knife by Nite Ize offers a perfect everyday-carry solution for convenient accessibility on your key chain. Designed with the features and durability of larger folding pocket knives, the DoohicKey Key Chain Knife offers a two-inch locking stainless steel blade housed in a lightweight aluminum body. This premium key chain knife uses high-quality, corrosion-resistant 420j2 stainless steel with a high-hardness level (51-54HRC), allowing this knife to retain a sharp edge. The included S-Biner allows you to quickly attach, detach, and secure this folding knife to key chains, backpacks, and other anchor points.