Designed specifically for the Reuseable Balloon Kit. Similiar to a beach ball, this reuseable inflatible balloon is made out of PVC vinyl and is 16 inches tall with a 14 inch diameter. It is a great way to attract attention without using helium since you only need air. Please note that while this product can be used anytime of the year it is still sensitive to air density. Here are some suggestions to keep your Reusable Balloons looking their best. In warmer weather make sure that you are only filling up the balloons to about 85%. This will allow the air in the balloon to expand in the heat. If over inflated and put in extreme heat the balloon might burst. In colder weather air in the Balloons will contract causing the balloon to deflate a little. Filling the balloon all the way might help it stay inflated. Slight deflation does not mean the Balloon is defective. Keeping the Reusable Balloon inflated in a controlled climate (such as an office) is a good way to test the Balloon.