Feature: 1. EFFECTIVE ANTI DROP: This bike chain catcher can effectively prevent the chain from dropping into the frame, avoiding the risk of dropping the bike due to chain release. 2. EASY INSTALLATION: Bicycle chain catcher only needs to be installed at the front shift position, easy to install, no need to spend a lot of time and effort for installation. 3. ALUMINUM ALLOY: Made of aluminum alloy, which has strong and durable characteristics. It can withstand long time use without damage and is not easy to corrode, providing users with reliable chain protection. 4. ANODIZING PROCESS: It undergoes surface anodizing process, which gives it a beautiful color and a strong metallic texture. This not only enhances the appearance, but also increases the delicacy and sense of touch. 5. APPLICATION TYPE: The bicycle chain catcher is suitable for 39T‑53T and 34T‑50T (oval disk shared). It is designed for a wide range of applications and provides additional chain protection for cyclists. Specification: Item Type: Bike Chain Catcher Material: Aluminum Weight: Approx. 34g / 1.2oz Applicable: 39T-53T, 34T-50T (Oval Disc Shared). Package List: 1 x Bike Chain Catcher 5 x Screw1 x Accessory