Bringsine 4Pcs Led Badminton Shuttlecock Dark Night Glow Birdies Lighting For Indoor Sports Activities-BlueItem size: 90*63mmTouch switch lights, Ic controlgood durability and excellent performancecan be lit 20 hours,badminton emphasis than can be used in low-light nightLED lights installed in the back of the cork, with OnOff push button Net Weight..