Buwico&reg; High-strength CNC Machined Aluminium Alloy Bicycle Stem Road MTB Mountain Bike Stem Bicycle Parts Cycling Handlebar Stem 31.8mm Constructed of high-strength CNC machined 6061 T6 aluminum alloy. Frosting finish, exquisite workmanship. Suitable for handlebar with diameter 31.8mm. Four bolt bar clamp holds bar securely in position. Package List: 1 * Bike Handlebar Stem