Make awe-inspiring decorations using our Balloonify Silver Mylar Letter S Balloon. Crafted into the shape of the letter S, this helium balloon is compatible with our other Balloonify letters and numbers. This mylar balloon is unaffected by heat and moisture, allowing you to use it for both indoor and outdoor events. The self-sealing valve of this foil balloon lets the balloon stay in its shape and size throughout the event. With a blazing silver finish, this custom balloon is perfect for your photoshoots. Hang this helium-quality birthday balloon on walls or ceilings with the hanging film provided with it. This reusable letter balloon measures 40 inches when inflated and can be filled with a pump. 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.