LED Light Up Peaked Baseball Cap Flash Glow Party Hip Hop Hat [Adjustable]: The cotton LED cap with its adjustable back makes it very comfy to wear.Suitable for adults, boys and girls.With free size, adjust the control. [Widely used]: The rave hat is perfect for Sunshade, Dance Fitness Event, Outdoor Sports, Tour Recognition, Concerts, Festivals Celebrations, Bars, Clubs, Birthday Party, Wedding, Night Club, Disco, KTV, Bar, Banquet, Stage Show, Evening Show, Performance Show, Singing Concert, Roller Skating Rinks, Christmas, Halloween, Gifts and more. Feature Breathable: Cotton; Made from a material that allows the scalp to breathe. Adjustable: The adjuster on the back is magic sticker, which makes it fully adjustable, fits many different head sizes. Improve Security: Best enjoyed and viewed in a low light or dark environment and can be avoided some potential traffic dangers. Specification Material: Cotton+LED Size: Head circumference: 60cm Brim: 40cm Hat body (height): 12cm Telescopic belt (magic sticker): 8-10cm The flash mode: On, fast flash, slow flash, off. 3 flashing modes: Fast flashing / slow flashing / steady light Package Included: 1 x LED Baseball Cap (without batteries) Note: 1. Due to the different monitor and lighting effect, the actual color of the item may be slightly different from the color shown on the pictures. 2. Please allow 1-3cm error due to manual measurement. (1 inch = 2.54 cm) Thanks for your support :)