Gracefulvara Wired Waterproof Mountain Bike Computer Backlight Digital Speedometer

The length of induction line: 80 cm
Supply method: CR2032 battery(not include battery)
Product accessories: Monitor induction magnet ribbons
Warm tip: When you install the magnet on the spoke, please control the distance between magnet and induction
Package contain:bike computer*1 , Ribbon*7, Inductor*1, Induced magnet*1, Bike computer base*1, Sticker*2