Features: Customizable button shims for electronic shifters enable personality button function reassignment, enhancing control during cycling with ergonomic finger. Durability plastics construction features antislip textured surfaces and multiple thick /color elections, engineered to withstands cycling conditions while protecting original button cover. Ideal for competitive cyclists, bike enthusiasts, and shifting setups for road bike. Optimizes electronic shifting performances during long distances cycling, or high speeds sprints while minimizing finger fatigue. Compatibility exclusively, these shims offer easy installation and team customization without compromising component integrity. Specifications: Dimension:10x6mm/0.39×0.24in Component:Plastics Package Includes: 4pcs Customizable Button Spacers note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.