Product name: fan hatProduct material: cloth + plasticHead circumference: 58 yards adjustableSunshade usb charging fan hat 。Free your hands and enjoy the coolness of summer。Made of cotton, breathable, soft, comfortable, wear resistant, suitable for summer wear.A golf cap that has a mini fan cooling the face.Great for the summer, travel, goft, and outdoor activities.Package includes:1 x Fan Hat Cap(other accessories demo in the picture is not included.)NOTES:1.Please Allow 0.4-0.8 inch Differs Due to Manual Measurement, thanks.2.Dimensions for items may vary slightly lesser or greater than listed depending on style.3.As different computers display colors differently, the color of the actual item may vary slightly from the above images, thanks for your understandingDue to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully.Please allow 1-3mm differs due to manual measurement.Due to the different display and different light, the picture may not reflect the actual color of the item. Thanksfor your understanding.