DUARABLE & HIGH QUALITYOur Chainsaw Chains are made of high-quality carbon steel, which is deeply hardened to ensure smooth cutting; the wood tooth design allows the chainsaw to get stuck on the branches, making cutting more efficient and faster 4PCS Chainsaw ChainsYou will get 4 chainsaw chains in enough quantity to meet your various needs; you can replace dulled or broken chains at any time, saving you time and unnecessary hassle EASY TO REPLACEMENTOpen the side cover with a nut driver, replace the original chain with one of our chains, install the side cover and tighten the nut, then turn the screw with a screwdriver to adjust the tightness of the chain. When installing, please pay attention to the direction of the chain teeth, do not install it in reverse Attention!!!ONLY FOR MINI CHAINSAW.Can replace 37 Drive Links 6 inch mini chainsaw chain and part of the 36/38 drive links 6 inch chainsaw chain, Cannot replace chain with less than 36 drive links or more than 38 drive links. Please compare carefully before buying Wide range of application scenariosOur chainsaw chain can be used for cutting, carving and shaping wood, cutting plywood, laminated flooring, chipboard, plastic, ice, rubber, etc.