HOD HEALTH AND HOME Australia has been operating online and instore for 8 years. All products come with a 1 year warranty, fast shipping and special offers added to our site daily.. Features: Easy Handlebar Height Adjustment For Improved Riding Comfort And posture Simple Installation By Loosening Stem Attaching Extension And Refitting Handlebar Compatible With Most Bikes Featuring A 28.6 Mm Stem Size Design With 4 Different Height Positions For Personalized Setup Lightweight Yet Durable Aluminum Construction For Strength And Stability Specifications: Material: Aluminum Color: Black Size: 12 Cm X 3.5 Cm Stem Compatibility: 28.6 Mm Height Settings: 4 Positions You Will Receive: 1 X Bicycle Handlebar Extension