DC Waterproof Silicone LED Bicycle Bike Light Headlight-Taillights, 2 Pack. High Quality Silicone Material with High Quality 2LED Super Bright Bulbs 3 modes of switch: full light, flash, slow flash, according to your actual needs can switch quickly. Fit most handlebars, seat posts, and frame tubes designed for bike safety front or back. Designed with the waterproof, vibration-resistant and prevent-falling, it can be used in various circumstances Brand Trademarks: DC , Record Number: 86526328, more details, please check by uspto gov.