Description:The 5 LED lighted cap can be used for students to read, and it  is very convenient  to use them for fishing or mechanic repair at night and so on.  they are also more used in large and medium-sized concert, bars, dance halls, sports and other forms of the party. Is the enthusiasm of the fans, fans, etc. they are the most representative promotional advertising gifts for  enthusiastic fans! Material:Cotton Fabric,5 LED Lights,2 Of 2032 Lithium BatteriesColor:Navy,BlackProduct Notes: The back buckle is designed with a velcro.The batteries with a box are installed on the right side of the hat and be wrapped cotton twill.There are two switches, the batteries box have an  master switch,  below the visor  there is a separate control switch.Details in size:Hat circumference:57cm-66cmHat depth:12cmVisor:7cmPackage included:1*Hat (with Batteries)More details:Disclaimer :About Size:Size may be 2cm/1 inch inaccuracy due to hand measure.These measurements are meant as a guide to help you select the correct size. Please take your own measurements and choose your size accordingly.we cannot accept responsibility for incorrect purchases. About Color:The precise color of the clothing items may vary depending on the specific monitor,the settings and the lighting conditions.The items colors depicted should only be used as an approximate guide