Inflatable Antlers - Large Inflatable Antler Headband Costume Accessory Antlers are inflatable they measure 19 inches. Can be use for Hair Accessories/ Headband. Here's a reindeer game worth playing! Just inflate these antlers for an effective Christmas costume. With the Reindeer Antlers Headband your gender doesn't matter. Just slip them on and enjoy. Good item to get into the holiday spirit.