Features: brand new and high quality The flashing stripe light is attached to a motorcycle helmet for warning effect which is quite obvious especially in foggy, rainy, or snowy weather, or at night or in dark environment, thereby effectively preventing rear-end collisions and ensuring driver's safety. Suitable for all kinds of motorcycle, scooter,mountain bike helmet. Night high brightness, waterproof and resistant to high and low temperature. Charging for 40-60 minutes, it can be used for 480-600 minutes. Do not hurt helmet,use double-sided glue,the residual gum after tear off is less,a few remain are swabable with cleaner essence can clear clean. Specifications: Material:PVC Length:Approx.46cm/18.11in Color:Blue,Green,Orange,Purple,Red,White,Yellow Net Weight:100g Package Includes: 1x Motorcycle Helmet Light Stripe(battery is not included) 1x 5V USB Charging Driver 1x USB Cable 1x Manual 1x Glue Sticker note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.