Funky cute and well made, these antlers are the perfect party accessory. They do light up. The battery with a switch is located at the top hidden in the decorations. They do not get hot with the led lights. I made these in a Forrest theme. The adornments are shatterproof . They are one size of a flexible headband and should fit kids who are a bit older, unisex adults, dogs and even horses. My rescue puppy has his as well as my American Mustang horse. These are not well suited for small children or infants as they do contain small parts. The perfect accessory for ugly sweater parties, host/hostess of parties, carolers and a great photo prop. Unfortunately , as these can be worn by pets and in people’s hair they are not returnable . If they were to be damaged in shipping please take photos of the damaged packaging and notify me immediately . I will make it right.