Features: Made of high-quality material, durable and sturdy, anti-scratch and wear-resistant. A great value rear derailleur that delivers crisp on- and off-road performance to a 9/27-speed drivetrain. The wide link design increases rigidity and using time. The 11-teeth pulleys can reduce chain noise and improve efficiency. Easy to install and remove, convenient to use. Suitable for mountain bikes, road bikes, cycling bikes and more. This derailleur shifts and clean,offers a reasonable amount to your bike Made of solid material which just look and function better Suitable for anyone whether serious MTB rider or commuter .