Product description: Type:Wheel Light Features:Flashing, Water Resistant, Batteries Included, 5 LED, Waterproof Color:Colorful Changed Material:ABS Plastic+Zinc Alloy+Oxide Layer Size:2.95*0.55 inch Weight:1.76oz Switch:Lighting Sensor and Shock Sensor Package Included: 2 X Wheel Light (Batteries included) Note: 1. Some pictures look bigger, please refer to the exact item size. 2. Please note that due to lighting effects, monitor's brightness and contrast settings, the color of the products may vary slightly between our photos and the item actually received. 3. We thank you for your understanding.