Kansas City Chiefs Team Helmet Party Pack – Welcome to Detroit Game Gear here is the product description. Hosting a birthday or theme party or looking for a few festive decorations to enhance your game-day celebration? These NFL Team Helmet Party Packs from Riddell are the answer! Each party pack includes 8 official helmets of your favorite NFL Team. The helmets measure 1 1/2″ tall (which is smaller than the pocket size helmets). Recommended for ages 3 and up.