Amazon.com: GENBREE Mermaid Costume Light Up Mermaid Hat 。Mermaid Light Up Headband — Perfect for making a splash at parties or festivals. Size: One size fits most, about 11x9.1 inches Color: Purple Condition: Brand new, no flaws. Features: This fun mermaid headband is made of comfy TPU with bright LED lights that really stand out. It features a starfish, shell, and pearl design that adds a magical, under-the-sea vibe. With three flashing modes—fast, slow, and steady—it\'s easy to customize your glow. Super light and easy to wear all night, perfect for cosplay, costumes, Halloween, or any night you want to shine. Material: TPU, LED lights Measurements: Headband size about 11x9.1 inches Great for: Costume parties, festivals, Halloween, New Year\'s celebrations, or just to turn heads at a night out. Ships quick from smoke-free, pet-free home. Perfect for standing out and making a statement. Reasonable offers and bundle discounts welcome!