Product Descriptions: Features: 1.Compatible with bicycles with standard spokes 2.Length of light string: 2 meters 3.Light color: Red, Green, Blue, Pink, White, Multi-color 4.Working time: 8- 10 hours. 5.Power on/off: Single press 6.Modes: steady, continuously flash 7.Power Type: powered by 1pcs AAA battery Specification: Product Dimensions: 9.5 x 6.5 x 1.4cm Waterproof: IP65 Package includes: 1x Bike Wheel Spoke Light