This throttle and NFC card are compatible with VSETT series electric scooters, including VSETT 8/8+/9/9+/10+/11+ (60V model), and fit ZERO series models including ZERO 8/9/10/8X/10X/Z8PRO, GRACE 8/9/10, SPEEDUAL/MINI. It is not compatible with ZERO 11X or SPEEDUAL PLUS. Supports voltage levels: 24V/36V/48V/52V/60V. The connector is a 6-pin model. Installation tools and instructions are not included. Proper installation and adjustment require advanced hands-on skills and electrical knowledge. If you lack experience, professional assistance is recommended. Ensure all screws are securely tightened before use. Color: black. Material: plastic. Package includes: 1 x throttle, 2 x NFC card. Items shown in pictures are for reference only; other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and actual product. Measurement tolerance is +/- 1-3 cm.