Features:Simple design with exquisite appearance.Can be individually adjusted to different head sizes.With a cooling fan, make you summer cooler.Suitable for traveling, fishing, climbing, playing golf other outdoor activities.Perfect for as gift to your friends.Descriptions:Energy saving, no batteries required.Save our earth, use of green power solar energy and turn the fan on.Specifications:Color: black, white, redSize: 27*21*12cmPackage included:1 x Solar Power Fan Hat Cap Notes:1.The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2.Please allow slight deviation for the measurement data.