Call yourself a “party pro” using our Balloonify Silver Mylar Letter Y Balloon. Shaped as the letter “Y,” this mylar balloon pairs with our other Balloonify letters and numbers. The mylar construction of this graduation balloon makes them durable and moistureproof. This metallic balloon can be filled with air or helium using a pump. For easy inflation and deflation, this foil balloon comes with a self-sealing valve, making it reusable. With a beautiful silver shade, this foil balloon lets you create themed-parties. For decorating your ceilings, use the hanging film of this balloon decoration. This birthday balloon measures 40 inches when inflated. To reuse these balloons, 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) sold separately.