aluminum alloy quick 31.8mm mtb bike cycling saddle seat post clamp quick release qr style new bicycle parts

this is a quick release style clamp, convenient and useful. you can adjust the clamp on the way even without any other tools, make your cycling smoothly. it is a little good partner for your bicycle, mtb. specification: 100% brand new & material: aluminum alloy clamp size: 31.8mm fit for: 27.2mm seatpost weight: 45g color: gold/ silver/ blue/ black/ red 1 x qr seat post clamp