Material：Plastic shell, waterproof design Size:Length 1.7 ，Height 1.2 ，Width 2.6（inch) Lamp with:78 inch Battery:Lithium battery 950 mA

• With 20 super-bright LEDs, they are the perfect combination of safety and style for nearly any bicycle.
• No tools required, fast and easy installation.
• Waterproof design,Rainy day can also be used
• Make your journey more colorful

With 20 super-bright LEDs, they are the perfect combination of safety and style for nearly any bicycle.cg