Item type: Bike Chain Link_x005F_x000D_Condition: 100% brand new_x005F_x000D_Material: steel_x005F_x000D_Weight: Approx. 28g_x005F_x000D_Optional Color: golden, colorful, silver_x005F_x000D_Suitable: 12 speed chain_x005F_x000D_Assembly Guide:_x005F_x000D_1. Install the right length chain, clean the bearings and lubricate them._x005F_x000D_2. Don't forget to lubricate the pin._x005F_x000D_3. Insert two halves of the missing link into the end of the chain._x005F_x000D_4. Press the two halves of the missing connection contact together._x005F_x000D_5. Lock in place by unlocking the chain._x005F_x000D_6. Open: Press the two plates together and slide the ends of the chain against each other. 1Premium steel bike chain links connectors is suitable for 12 speed chain. 2Fit chain with the correct length, clean bearing, and lubricate. 3No need tool to remove the chain for cleaning. 4Suitable for mountain bike and road bike chain. 53 different colors for you to choose, meet your different needs.4 Pair xBike Chain LinkRecommended to use with quick-release tool. It can be re-used. It is limited to 3-5 times. Need to replace the quick-release buckle when you change the chain.