CUTE & STYLISH: Blinky Light Up Cowgirl Hats with Sequin Trim and Princess Tiara Looks Cool Day and Night! EASY TO USE: Flip The Switch Inside Bucket & Tiara LEDs will Flash. Chin Strap Adjusts the Fit - One Size Fits Most. FUN FOR ALL: Country Western Theme Events, Festival Fashion, Halloween, Playing Dress Up & More! SHINE ON & ON: Batteries are Replaceable so Blinky Lights Cowgirl Hat Can Be Used For Multiple Events. Product DescriptionLight Up Country Western Pink Cowgirl Hat is the ultimate light up cowgirl accessory! It is perfect for a western party, Halloween or just for fun! Wear the light up cowgirl hat to have the best Halloween costume in the Wild West! Instructions: To activate the flashing LEDs in the tiara, slide the On/Off switch. The battery pack is inside the bucket of cowgirl hat. Dimensions: Length 15", Height 7.75", Width 7". Hat Size: One size fits most. LED Colors: 3 Red, 3 Blue, 3 Green. Includes 4 replaceable AG10 Batteries.