Astonish your patrons with fab decor with our Balloonify Silver Mylar Letter F Balloon. Fashioned with the letter F, this birthday balloon coordinates well with other Balloonify numbers and letters. To conveniently use this letter balloon outdoors, they are moistureproof. This durable party balloon can be reused numerous times to improve sustainability. The self-sealing air inlet of this balloon decoration locks the air inside, leaking out. By using a hand pump, this graduation balloon can be effortlessly inflated. This custom balloon can be expanded with air or helium. The lustrous silver finish of this helium balloon exudes a classy touch to the banquet decor. With a built-in hanging loops, this happy anniversary film can be easily hung on walls and ceilings. 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.