HOTGEE&reg; LED Badminton Shuttlecock Dark Night Glow Birdies Lighting for Outdoor Indoor Sports Activities Material:Feather, Goose feather, SMD lamps, Electronic product. Colors: A box of one blue, one red,one green and one multi color.Perfect for playing in the dark environment. LED lights installed in the back of the cork, with On/Off push button.This light-up birdies are very bright and durable, change colors and the batteries last 20 hours This LED badminton is perfect for night play and just makes badminton even more fun 100% PROMISE.You get our Money Back Guarantee for no-risk- shopping.