Item Type: Chainsaw Flywheel_x000D_ Material: Aluminium Alloy_x000D_ Product Size: Approx. 9.5 x 9.5 x 4 cm / 3.7 x 3.7 x 1.5 in_x000D_ Weight: Approx. 295 g / 10.4 oz_x000D_ Suitable: for STIHL Hs81r, Hs81t, Hs86r, Hs86t Hedge Trimmer_x000D_ _x000D_ OEM: 4237 400 1202 1High Quality Material: The chainsaw flywheel is made of high quality aluminium alloy, durable, wear resistant and long service life. 2Exquisite Workmanship: It adopts professional manufacturing, exquisite workmanship and the advantages of high accuracy, which help to provide the best performance. 3Practical Use: An excellent replacement for STIHL Hs81r Hs81t Hs86r Hs86t hedge trimmer. It can effectively prolong the service life of the machine. 4Stable Working: Exquisite workmanship with sturdy structure ensures reliable working to improve the performance of the machine and can perfectly fit your machine. 5Easy to Install: Comes with a light weight and a compact size, the convenient installation can be quickly completed and will not cost you too much time.1 xFlywheel