1. HIGH SENSITIVITY: The scooter thumb accelerator is very sensitive and can be pushed out gently, which is very easy to use. 2. COMFORTABLE GRIP: The scooter thumb accelerator has high elasticity for a more comfortable ride without hurting your hands. 3. EASY INSTALLATION: Easy installation and disassembly, strong practicability, simple operation and convenient use. 4. APPLICABLE: Electric scooter dial accelerator is suitable for electric scooter, it is an ideal accessory for your scooter. 5. PREMIUM MATERIALS: The electric scooter accelerator is made of high quality plastic materials for durability and . Plug:3 Pin Connector Installation:Right and Left For S1 S2 S3 Electric Scooter Accelerator Hall Sensor Booster Replacement Parts Note: Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Color:Black Material:plastic Package Contents: 1 * Thumb Throttle Brake kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.