The shiner is made of high optical glass fiber， with great light-gather and exposure ability
The cap is made of high quality brushed cotton cloth， very durable and comfortable to use
With a Velcro to adjust the size of the cap (adjustable cap circular length: 57 - 60cm)
Cap diameter: About 18cm， height: about 14cm， brim length: about 13cm
2 Shining mode: strobe and long light
Strobe mode could last 60 hours and long light mode can last 30 hours
Best choice for cycling， running， camping and other outdoor activities， it also suits for large-scale concerts
Powered by: 2 x CR2032 button battery ( not included )