The bike chainring chain guard is made of high-quality plastic material. PROTECTIVE: The chain guard cover helps protect your bicycle chain from dust, water, and debris. It also helps prevent oil stains on clothing while riding. EASY TO INSTALL: The chain guard cover is easy to install with no complicated steps required. It is lightweight, convenient to attach and remove, and does not affect ride performance. SIMPLE DESIGN: This crank ring protector is made of durable plastic, featuring a lightweight and classic design. Note: Before ordering, please verify the tooth count of your bicycle crankset, the number of crankset mounting holes, and the bolt circle diameter. Ensure compatibility with this cover. Specifications: Suitable for: 32–38T Size: 48 cm × 18 cm (18.9 in × 7.09 in) Package Includes: 1 chain guard cover Note: Slight variations may occur due to manual measurement and display differences.