Specifications

Product name:UPANBIKE Bike Seatpost Clamp Quick Release Φ31.8mm 34.9mm B129
Material:Alumimum alloy 6061
Diameter 31.8mm:can fit 27.2mm, 28.6mm seatpost
Diameter 34.9mm:can fit 30.4mm,30.8mm,31.6mm seatpost
Color:balck;silver;red;blue;gold
Weight:about 50g
For Bike Type:BMX Bike;Cruiser;Road Bike;Mountain Bike;Universal Bike
Package included:
1 X Bike Seatpost Clamp

Features:Quick release; fast release & install
How to choose a  suitable seatpost clamp:
1.Confirm your seatpost diameter
2.According the seatpost diameter choose the appropriate seatpost clamp