The Oregon R56 16 inch Saw Chain is a high-quality metal chain designed for use with gas-powered chainsaws. With a length of 16 inches and a diameter of 1 inch, this chain is compatible with brands like Craftsman and Husqvarna. It is specifically designed for 2-stroke engines with a power rating of 1 HP and 50 cc engine size. Manufactured in the United States, this chain does not require any assembly and is a reliable replacement part for maintaining your yard and garden.