Product description:
Brand Name: ETOP
Material: ABS, 20 LED lights
Size (inches) : 5” *3.5”*1”
Switch: Light and Dynamic sensor
Power Supply: 2 x AA 1.5V battery
Weight: 3.2 ounces(super lightweight)

Installation method:

• Open the package of bike wheel lights, take out all parts
•  Mount the battery cabin between the bicycle steel wire
• Wind the light strip on bicycle steel wire
• Install batteries

Ultra Bright LED - Bike Wheel Light String (1 pack) - Assorted Colors Bicycle Tire Accessories- Burning Man Accessory

• AUTOMATIC & MANUAL LIGHTING: There is new switch function can be turned on and turn off at any time.Bright light activates when sensing motion at night, turns off when no motion for 60 seconds. IP65 waterproof design with Bodyguard bike wheel lights. Even immersed in water, within 10 minutes, the bike tire lights can work well. AA Battery powered lights, suitable for all kinds of weathers.
• SUPER FUN And SAFETY: These wheel lights can be installed on nearly all bicycles, such as foldable bike, road bike, mountain bike and so on. 5 colors to choose, each box covers 1 wheel, any two colors are a new style! High brightness lights gain increased visibility from all directions,keep your loved ones or friends are safer .
• Easy to install:You got it! These cool LED bicycle rim lights are simple to install in minutes on wheels 20”and larger. They even fit smaller wheels with 20 spokes. No tools needed.
• New Modes:There are four modes, Slow flash,Mid flash,Quick flash, Steady light.Various modes are changed at any time .Awesome gifts for both boys and girls. Even men and women love them! bring lots of fun, wonderful gifts for everyone