7 LED Bike Wheel Light includes the following features :

• 7 Quality LED bulb
• Flash 12 kinds of pattern
• Brightness controlled by light sensor and movement
• 2 Modes of brightness setting (Constant and flash)
• Lighting time: 20 hours (Constant); 40 hours (Flash)
• Operated with 3 x R44 cell batteries (included)
• Easy to install and quick release

Material :

• ABS plastic handle

Size closed :

• Diameter of 1.6 cm x Length of 9.5 cm