D-shaped buckle and horseshoe buckle, the surface is polished and smooth, and the stone washing process is used. The inner and outer walls are CNC precision machined, which is exquisite and delicate. The unique horseshoe buckle solves the problem of difficult wearing of car keys. Choose your favorite connection at will. It is easy to disassemble and assemble with screws and is very firm. Made of high quality material, it will never rust, small and light, strong and durable. Suitable for all kinds of car and motorcycle keys, outdoor tools, etc.