model: 32led21 figure full color bicycle hot wheels

 battery: aaa × 3

 pattern: 21 patterns, change in four seconds

 product size: 153 × 95 × 20mm

 packaging: neutral, blister

 waterproof description: waterproof grade ipx6 (not supported for soaking)

 installation instructions: applicable to 20-inch and more than 20-inch conventional steel wire models, including disc brakes and ordinary v-brake. it is not suitable for wide strip and sparse spoke models.

 instructions for use: press the switch key for two seconds to turn on, enter the induction mode, as long as the vibration is sensed, it will light up, and press it for another two seconds to turn off.