Selected aterialMade of aluminum alloy material, lightweight, durable, and long service life. The of the Bike Shifter Clamp is colorfast and resistant Hollowout DesignHandlebar Clamp handle is partially hollowed out, which is very lightweight and stylish and can add some beautiful color to your ride Widely UsedErgonomically designed quickrelease Bicycle Shifter Clamp, in a more comfortable and efficient way. Bicycle quickrelease seat clips are suitable for road bikes, mountain bikes, folding bikes, etc. Easy to InstallBicycle Brake Clamp is sturdy and durable. No tools, and no need to hire a technician, you can assemble it independently, so you don't have to worry about installation Best GiftBicycle Gear Shifter, saves the hassle of carrying tools, you can give it to family, friends, or anyone who loves cycling and outdoor sports, they will love it