Description: Handling more flexible, light weight, easier to force when climbing, operation is comfortable. Can freely adjust the gasket to fit your own height. Easy installation, just connect up the original front fork stem; Very simple installation on most bikes. The product equip with 4 gaskets,1 x 10mm and 3 x 5mm, can increase the height up to 70mm. Specification: Color:Blue,Gold,Silver,Black,Red Uses: adjust the height of the handlebar, especially for long ridering installation. Material: aluminum alloy 6061 turning process. Accassory: 3 * steel screws, 2 * 1cm thickness and 2 * 0.5cm thickness aluminum alloy gasket. Treatment: Aluminum oxidation. Base diameter: 1-1 / 8 "(28.6mm) Fork diameter: 28.6mm (standard) Length: 12 cm / 4.7in. Maximum Height Extension: 2.7 inch (70mm) Suitable for : general mountain bike, BMX, foldable bike, etc. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow 1-2cm error due to manual measurement. Package Included: 1* Bike Fork Stem Extender. 1*Accessories Set. Please kindly Note: Items will be repackaged to save your shipping charge & to be environmentally friendly. We guaranty the item will be protected well in buble bags, No retail box!