Feature:1. Simple Disassembly and Convenient Maintenance: Simple disassembly, convenient maintenance, can be placed in the backpack. Easy to install, reduce the knot and chain break caused by improper chain pin driving.2. Recommendation: Road bike chain buckle replacemnet, with long service life, it is recommended to disassemble not more than 5 times.3. Manufacturing Material: Made of high quality steel material, strong and durable, which undoubtedly effectively extends its service life.4. Minuteness Processing: Fine processing, minuteness processing, rust proof and corrosion resistant. Simple operation, without too many tedious steps.5. Easy to Use: Easy to use and fine workmanship. Without any difficult requirements even though you use it for the first time.Specification:Item Type: Bicycle Chain Connector BuckleWeight: Approx.15g / 0.5ozMaterial: Steel.Package List:5 Pairs x Quick Release Buckle