!!!ATTENTION PLEASE!!! Due to the logistics rules, the battery of the small lamp was removed at the time of delivery. The battery model is CR2032, which you can buy near your residence.Please pay attention to safety when disassembling the battery to avoid hand injury. 1.Elegant design,High-quality helmet material and exquisite manufacturing 2.Universal size with adjustable lynon chin strap, fits for most people 3.Longer brim to better shield your head from sun and rain 4.small outer shell made of high strength plastic, strong and light, 5.The liner is high-level warm fabrics, and with high-density foam cushioning layer. 6.Well made and comfortable to wear. 7.With cycling warning light at tail.（Gradient style only）   Specifications: Description: Type:Helmet Material: PC Size:approx. 33x22x16cm Color:Red,Blue,Hot Pink,Gray,Green ETC Package Included: Helmet*1 Brim of a hat*1