MIX & MATCH: Combine the number 0 with other balloons to complete the number formation or use it as a standalone piece. Perfect for birthdays, anniversary celebrations, etc DESIGN: Bring back the charm to any party with this number balloon. The front side of the balloon features Numerical “0” in purple color with a pretty blue background whereas 0 in multicolor can be seen at the back. HELIUM QUALITY :Visit your nearest helium gas provider and have the balloons filled with helium or simply use an air pump to inflate the balloon with normal air. Do not over-inflate, we will not be responsible if the balloons burst due to over-inflation. We also add ribbons and balloon weights to the balloon at no extra cost. SIZE: This Foil Balloon measures 18 inches. Safe and non-toxic.