Make your anniversary party stand out with our Balloonify Pink Mylar Number 9 Balloon. Featuring the number 9 balloon design, this mylar balloon is perfect for making your kids' 9th birthday party extra fancy. Made from premium material, this birthday balloon is durable and can be reused multiple times. The self-sealing design prevents air from escaping from this party balloon. With its mylar construction, this moistureproof number balloon can float in humid conditions. Easily inflate this graduation balloon with helium or air to make it expandable. Featuring a super-thin layer of aluminum, this balloon leaves no space for air to escape and has a glossy appearance. With a cute pink finish, this custom balloon is ideal for all your minimalistic theme parties. The built-in hanging loops makes it easy to hang this mylar balloon on all kinds of hard surfaces. This happy anniversary balloon measures 16 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.