DESCRIPTION : 100% Brand new and high quality lights installed in the back of the cork, with On/Off push button. Material: goose feather, feather, SMD lamps, electronic products. Color: Appearance white, light color is Colorful Can be lit 20 hours, badminton emphasis than can be used in low-light night. Touch switch lights, IC control. Good durability and excellent performance. Size: 80mm x 60mm. INCLUDED : 4 Pcs x LED Shuttlecock