To activate your LED Flashing Cowboy Hat with Gold Sequins , flip the switch on the battery house that resides up inside the hat. Lights FAST FLASH only. LED Colors: Gold Dimensions (LxWxH): 15 in. x 9.5 in. x 5 in. One size fits most - Up to 22" Comes ready to use with 4 replaceable AG10 Batteries. LED Flashing Cowboy Hat with Gold Sequins by Blinkee All Products, Gold, LED Fashion and Costumes, Light Up Hats