BlinX Action Sports LED's: Blue Ultra bright flashing LED lights: Great for safety and looks cool! Easy to install on virtualy any flat hard surface using 3M VHB industrial tape. Skate Boards, InLine Skates, Quad skates, Scooters & Bikes Manual On/Off switch puts you in control of when the lights are on. Available in 9 different colors: Red, Blue, White, Green, Purple, Yellow, Orange, Pink & Tri-Color (3 LEDS in 1: Red/Blue/Yellow) BlinX LEDs are compact, light weight and made of aircraft grade T6 aluminum for durability.