High-quality materials: The chain links of bicycle chains are made of 50 steel, are durable, resistant to oxidation and wear. After precision processing, it is not easy to be damaged and can be used for a long time. High performance: Smooth edges do not damage the bicycle chain, which is conducive to smooth operation chain. High tensile strength up to 950 kg for exchange or temporary repair of bicycle chain accessories. Easy to use: Easy to assemble without additional tools, quick release design is easy to use. Robust steel construction for reuse, suitable for racing bikes and mountain bikes. Perfect compatibility: 21mm long, 5.5mm wide, 7mm high Bike chain connection is compatible with all 11 speed chains and your ideal accessory for swapping bike chains. You don't need to go to a repair shop to save a lot of money. Bicycle chain replacement parts: The set contains 3 pairs of bicycle chain chain links . Product Description 3 Pairs Bike Link Chain Lock Bike Chain Links Bike Chain Links for 11 Speed Chain Properties: -The length of the bicycle chain link chain lock is 20mm, the width is 5.5mm, the height is 7mm, suitable for all mountain bikes, bicycles with 11 speed chain. durable stainless steel material, suitable for long-term use. -This bicycle chain link can be reused, is easy to assemble and to disassemble. No tools are needed. You can operate it yourself. -The set contains 3 pairs of stainless steel bicycle links, a total of 6 pieces. Packed in OPP bag, easy to carry and not lose. Specification Product name: bicycle chain link Materials: 50 steel Color: silver Type: 11s Weight: 80g Packaging included 3* quick bike chain clips