Wear green Devil Horns and you’ll look kind of devilish. You can wear them with pride even if you’re not Irish. Wear them to school and you’ll get good grades. Or wear them to parties, pubs or parades. To activate the glowing green horns simply turn the switch above the battery pack to the ON position. These horns are one size fits most. Note: This item has a still light function when on, it does not flash or blink. Height: 6.0 in. , 15.24cm. – Width: 6.5 in. , 16.51 – LED Colors: 2 Green – Includes 4 replaceable AG13 Batteries. Each Devil Horn headband is packaged in a clear plastic bag.