Mini Shape Air Fill balloons are designed to fill with air only and secure to a cup and stick. Different from the regular air fill balloons, mini shape air fill are formed in the shape of the respecitve theme of the print. Extremely popular at floral shops, grocery stores, adding to gifts/gift baskets, and accenting large scale decor. They are even popular for adding to balloon arches and garlands to add extra flare to the theme. A typical sealing technique is to inflate the balloon and pinch the neck to keep the air from escaping. Then using a heat sealer above the point you are pinching the neck to complete the seal. After that the neck of the balloon can be wrapped/secured to a air fill balloon cup, and then attached to the stick. Air fill balloons are not self-sealing and ships not inflated. Cup and stick not included.