Bicycle Bottom Bracket Protector Sticker Guard for Brompton Folding Bike Carbon BB Frame Protection Pad? Feature:? 3D , 1/2 round shape , protect for bottom brackets, with sticker. Prevent wear of the rear wheel and bottom bracket when folding. Specification: Material: Carbon? Feature: Durable? Color: Black, Silver, Colorful Product Size: 70 X 30 X 30mm/2.76 X 1.18 X 1.18" Installation Steps:? 1. Cleaning bicycle? 2. Stick the Sticker on the frame. 3. Put Protector on the sticker. Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement. ? 1 X?Bottom Bracket Sticker