Yuauy Bicycle 3 kinds Seat Clamp Seat Conversion Clamp Cushion Screw Connector Fixing Clip Seat Adapter Saddle Mount Buckle Seat Post Clip for Bike Standard Rail Saddle

["Package included: 1 x Black Seat Clamp w/ stop + 1 x Black Seat Clamp + 1 x Silver Seat Clamp","There are 3 kinds of Bicycle Seat Clamps in one set including the Black one with stop, the Black Normal one, the Silver Normal one","Size: the ID is 7/8\"","Color: Black, Silver","They are siutable for most bikes including mountain bikes and road bikes"]