Give a classy tone to your party using our Balloonify Black Mylar Letter S Balloon. This S-shaped birthday balloon is congruous with our other Balloonify letters and numbers to let you create beautiful messages. Made with premium mylar, this party balloon is long-lasting and reusable for multiple occasions. Plus, this custom balloon is moistureproof to withstand humid conditions. The self-sealing valve of this jumbo party balloon seals the air in to provide a firm look. To dress up your party halls in a chic way, this letter balloon comes in a black shade. Conveniently hang this helium balloon using its built-in hanging film on any surface. This balloon decoration can be filled with air or helium. Measuring 40 inches when inflated, this custom balloon can be filled using a hand pump or an automatic 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.