Accentuate your event backdrop with our Balloonify Black Mylar Letter E Balloon. For personalized banners, pair this birthday balloon shaped like the letter E with other Balloonify numbers and letters. The letter balloon is made from moistureproof mylar to stay dry in humid environments. With durable construction, this party balloon can be reused for your other special events. By enclosing the air inside this self-sealing balloon decoration, the air can't escape, creating a firm structure. This mylar balloon is suitable for air and helium inflation. To avoid the hassle of inflating it yourself, this balloon decoration can be blown up with a hand pump. Featuring an aluminum black finish, this helium balloon gives your events a chic and trendy look. Built with hanging loops, this custom balloon can be hung on walls or ceilings. This black 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.