Planet Bike Tail Light Bracket Includes seatpost and seatstay mounting brackets Compatible with Blinky 3, 3H, 7, Grateful Red, Superflashes, Turbo, Superflash Micro and Blinky Safety tail light Use with Blinky Safety Front light bracket to fit oversize (~31.8mm) handlebars Fits seatpost or seatstay Compatible with: Blinky 3,5,7, Superflash, and Blinky Safety rear light Use with Blinky Safety Front light bracket to fit oversize (~31.8mm) handlebars