Decorate your guests for a festive celebration with our LED Gold and Silver Disco Ball 40" necklaces. The perfect choice for Hollywood themes, milestone events, decade disco parties New Year's Eve, or any festive celebration. Our 40" light-up LED Gold & Silver Disco Ball Necklace features (7) 3D 1 5/8" metallic disco balls with LEDs built right in. Click the on/off button to choose from 3 different flashing settings. 3 AG 13 batteries are included & installed. Use it to add to your table decor & centerpieces too. US Patent Number: 10,064,461