Warm comfort meets dependable illumination with these Guide GearA(R) Beanies. Light source on the front of the cuff provides more than 12 hours of continuous light. Perfect for late-night dog walks and early-morning treks in the field. 2-ply stretch 100% acrylic 5-bulb light on front cuff On/off switch beneath cuff Light mechanism is removable 2-pack Uses (2) #2032 lithium batteries (included) One size fits most