Description_x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D__x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_Are you looking for a professional, yet affordable bike heightening device Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once If yes, look no further Our professional bike heightening device must meet you needs It is one of the best choices for you _x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D__x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_Features_x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D__x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_- Color: Black _x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_- Size: 13 x 3 5 x 3 5 cm _x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_- Material: Aluminum alloy _x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_- The material of the product is finished by the aluminum alloy turning process, which makes it have better strength _x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_- Sturdy, corrosion-resistant, rust-free, high toughness, no deformation _x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_- The height of the extender can be adjusted by adjusting the number and type of spacers, reducing the pressure of waist effectively, biking more relaxed Take the discomfort away from your upper back, neck and wrist _x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_- More resistant to corrosion, not easy to loose, and safer to use _x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_- Light weight, adjustable height, ultra high strength, easy to install _x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D__x005F_x005F_x005F_x005F_x005F_x005F_x005F_x000D_