Specifications: Luminous LED lamp hat design, really cool at night. Made of high quality cotton material, breathable and comfortable to wear. Suitable for Christmas party, club, performance prop and etc. Type: Baseball Hat Gender: Unisex Size Type: Regular Material: Cotton and LED Style: Casual Power Supply: 2 CR2032 Batteries (Included) Flashing Mode: Quick Flashing, Slow Flashing, Regularly Bright Features: Luminous, Comfortable, Solid Color Size: Free Size Head Circumference: 55cm-60cm/21.65"-25.59" (Approx.) Notes: Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Baseball Hat