1.Perfect Compatibility: Specifically designed for a range of chainsaws, including models 135, 135E, 140, 140E, 440E, 440 II, 440E II, 445, 445E, 445 II, 450E, 450E II, as well as Jonsered CS2240, CS2240S, CS222. 45, CS2 245S, CS2250S Ensures a perfect and trouble installation.2.Complete Package: This exhaust silencer set includes 1 exhaust silencer, 1 gasket, 2 nuts and 1 heat shield. All necessary components are included in the scope of delivery and provide a complete and reliable package for seamless installation and optimal performance.3.Construction Made of stable metal material, this exhaust silencer is built to withstand the demanding conditions of chainsaw operation. It long durability and ensures consistent performance even in demanding environments.4.Userfriendly Design: This exhaust silencer is designed for easy installation and can be securely attached to your chainsaw without the need for complex tools or professional help. Userfriendly design makes it convenient to use.