Features: 100% brand new and high quality.Hollow-out design delivers super light weight, also easy to get the internal silt out while during working period, difficult to get stuck.Aluminium alloy construction is strong and reliable, durable for long term use.The anti rust coating can increase the chain life and reduce rust affecting the running of your chain.The chain is stretch-proof and is able to withstand a little more wear and tear which means you can get more mileage of the bike chain.Compatible for most mountain bike and road bike.F10 chain is suitable for 10 Speed and 30 Speed, F90 chain is suitable for 9 Speed and 27 Speed.Specification:Item Type: Bike ChainMaterial: Aluminium Alloy Color: As Pictures Shown Optional Style: F90, F10 Size: Approx. 144 cm / 56.7 inch Package Weight: Approx. 302 gPackage Include: 1 * Bike Chain