Each Mardi Gras LED Ball Necklace features 7 assorted purple, yellow and green plastic LED Balls and 6 different light settings. With a click of the on/off button choose from a slow to fast flashing mode, super fast flashing mode, blinking mode, alternate color flashing mode, all colors flashing and steady on. All of our Light Up Ball Necklaces come with (2) CR2032 batteries included & installed. Our Mardi Gras LED Ball Necklace is perfect for any Fat Tuesday or Mardi Gras theme party and they look great day and night! Perfect for parades and bar hopping down Bourbon Street. US Patent Number: 10,064,461