Although Pop! uses only the highest quality materials, balloons, by nature, are temporary items, and some may deflate sooner than expected. Once out of our care, we cannot guarantee the lifespan of your balloons. Please note that balloons are adversely affected by weather, kids, pets, branches, sharp edges, rough handling, heat, wind, and other uncontrollable factors. Please note that balloons will deflate in the cold and inflate in the heat. Although our balloons typically do well outdoors, we recommend keeping balloons in a shaded area, especially on a warm/hot day. All balloon sales are final.