Silicone and convex part design prevents chain shaking and continuous knocking on the frame, slow down the chain knocking strength. 3D structural design can be adapted to curved surfaces and effectively protect the surface of the frame from scratches, waterproof, sand and uv. It is constructed of silicone material. We have various styles for you to choose. It is suitable for bikes. Back adhesive design makes it easy to use and not damage to the bike. Item Name: Chain Stay Pad Material: Silicone Features: Anti-scratch, Lightweight, Wear Resistant Size Details: A LxW: 23.4cm x 5cm/9.22" x 1.97" (Approx.) B LxW: 23cm x 4.2cm/9.06" x 1.65" (Approx.) C LxW: 23.2cm x 5.3cm/9.14" x 2.09" (Approx.) D LxW: 24cm x 4.1cm/9.46" x 1.62" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Chain Stay Pad