Offer your guests a spectacular backdrop with our Balloonify Silver Mylar Number 5 Balloon. Made into the shape of a 5, this number balloon perfectly pairs excellently with other Balloonify number balloons and letters. The moistureproof construction of this birthday balloon allows it to stay afloat in humid conditions. This party balloon is durable and can be reusable at multiple events. The self-sealing design of this balloon decoration ensures the balloon stays firm for long-lasting usage. Easily inflate this graduation balloon using a hand pump. Suitable for air and helium inflation, this graduation balloon allows you to hang or float them. The aluminum silver finish of this helium balloon complements all kinds of decor. Incorporated with hanging loops, this custom balloon can be easily hung anywhere. This silver mylar balloon measures 40 inches in length. To reuse this balloon, gently deflate, properly store, and carefully reinflate without overfilling. Shipped deflated in a 1 count box. This party balloon can be easily inflated with the included straw, providing you with full control to help eliminate the risk of over-inflation. Electric air balloon pump (SKU: RWP1061) is available and sold separately.