To activate your LED Flashing Cowboy Hat with Green Sequins, remove the pull tab & push the button on battery house up inside the hat. Choose from flash, blink & steady lighting and get ready to boot scootin boogie! LED Colors: 6 Jade Dimensions: 15″ x 9.5″ x 5″ One size fits most – Up to 22″ Comes ready to line dance with 4 replaceable AG10 Batteries.