product description Material: carbon fiber (handle) + aluminum alloy (bracket) Colour: Black Bar diameter: 20mm Bar length: 200mm Bracket length: 90mm Quantity: 1 set Shipping Contents: 1x pipe 2 bike holders 1 hex key 1. High-quality workmanship: The handlebar extension is made of aluminum alloy, which is stable, lightweight, and rust-proof. parentheses are 2. Double clamp design: double clamp anti-skid and anti-collision. Bar diameter: 20mm Bar length: 200mm Bracket length: 90mm 3. Increase space: This bracket increases the space on the handlebar, which can place additional items such as mobile phone, speedometer, flashlight, smartphone, etc., very practical 4. Easy to carry: The bike extension stand comes with an Allen key, allowing you to install and remove quickly and easily in minutes 5. Wide application: suitable for most bicycles.