Product advantage 1: Can be stretched and shortenedProduct advantage 2: Adjustable angle, convenientProduct advantage 3: Ultra-light reinforcement materialProduct advantage 4: wider compatibilityProduct advantage 5: sports cameras can be installedProduct Name: Bicycle Computer StandWeight: 73.2gProduct advantage 6: car lights can be installedProduct advantage 7: center width 23-30mmMaterial:Carbon fiber + plasticcolour:BlackPackage Contents:1 x Bike Computer Holder SetOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.