Type...Radio Control Thank you for viewing. KYOSHO (Kyosho) KT-531P Brake Trigger Adapter 3-size set ・This is a 3D-printed adapter for adjusting the throttle/brake trigger spacing of the KT-531P wheel-type transmitter included with Kyosho products. The standard trigger spacing is quite wide. By adjusting the trigger spacing to the driver's preference, it becomes easier to control speed. ・Set of 3 sizes: +6 (red), +7 (yellow), +8 (blue) (+6 narrows the trigger spacing by approximately 6mm compared to the standard) By trying out different trigger adapters with varying trigger spacing, you can easily determine your preferred trigger spacing. ・Insert the brake trigger into the brake trigger adapter and secure it with a 3mm set screw. ・3mm set screws are not included in the listing. Please use your own. ・The transmitter and screws shown in the photos are not included in the listing. Only the 3 brake trigger adapters of +6, +7, and +8 sizes are included. ・Material is PETG resin, black. Thank you.