Features: 1、Electric chainsaw replacement kit， using zinc alloy material， high hardness， high strength， wear resistance. 2、Simple installation and disassembly， can directly replace old or damaged chainsaw clutch parts. 3、Clutch drum rim sprocket assembly， can be perfectly adapted to your chain saw equipment. 4、Excellent workmanship and stable performance can extend the service life of the chain saw. 5、Clutch assembly specially designed for Stihl MS660 066 064 MS640 MS661 chainsaw. Specification:Condition: 100% Brand NewItem Type: Clutch AssemblyMaterial: Zinc AlloyWeight: Approx. 443g / 15.6ozApplication: For Stihl MS660 066 064 MS640 MS661 Chainsaw Package List:1 x Clutch Kit (7Pcs)