1. Material: ABS
2. ABS shell, durable, safe and solid, easy to install
3. Digital voltage display, meticulous workmanship, beautiful and practical
4. It can judge the fault voltage of the electrical car, and accurately judge the remaining power and driving distance
5. Applicable models: for handlebar diameter of 22mm electrical car, scooter, key start
6. Weight: about 133 g
7. Size: about 15 x 10 x 6 cm
8. Packing list: switch assembly x 1, key x 2