LED lights installed in the back of the cork， with On/Off push button.Material: goose feather， feather， SMD lamps， electronic products.Color: Appearance white， Luminous colors: There are colorful or monochrome red / blue / green / yellow and other colorsBadminton emphasis than can be used in low-light night.Touch switch lights， IC control.Good durability and excellent performance.Specifications:Size:6.4*8cm Built in 2pcs AG3 button batteryPackage Included:2 x LED Shuttlecock