The Tail Light Feature A One-Touch Switch With Four Different Lighting Modes Depending On Your Preference: Include Full Brightness, Half Brightness, Fast Flashing And Slow Flashing. The Tail Light Can Be By USB Cable Via Computers, Chargers Or Portable Power . With A Convenient One-Touch Dismount Button, You Just Need To Slide The Light On & Off The Mount Without Removing The Whole Mounting Bracket; The Silicone Mount Strap For Taillight Is Designed With Four Openings That Tightly Fit Around Most Size Handlebars And Seat Posts. The Tail Light Is Hook onto Your Belt, Running Gear, Backpack, Dog Collar, Bicycle, Helmet, Skateboard, Scooter, Stroller, Wheelchair, Or Anywhere You Can Imagine. Material: Plastic colour: Red+white Package Contents: 8 x Tail Light Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.