Features: 1.Refun tail light was precision crafted with the hand selected with high quality silicone material with high quality super bright bulbs. 2.Easy to install quickly, without any tools required! 3.Brightest led bike tail light to improve safety with increased visibility from cars. Description: 1.Waterproof and shock-proof, multi-mode one-button operation of high-elastic silicone floppy ring fixed without damaging paint light portable mounting drum sheet can be installed in the frame seat tube handlebars and other places. Specification: Name: sixth generation LED silicone frog lamp Material: high elastic waterproof silicone material. Size: 45*45*26 (mm) Weight: single 18.5G, suction card installed 44.8G Color: Red / yellow / Blue / Green / White / black. Mode: 3 mode (long bright, flash, slow flash). Battery: two AG10 (LR1130) button batteries Package included: 1 x tail light Notes: 1. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures. 2. Please allow slight dimension difference due to different manual measurement.