Make your event shine with our Balloonify Silver Mylar Letter E Balloon. Coordinate this birthday balloon shaped like the letter E with other Balloonify numbers and letters to make custom banners. Designed from mylar, this letter balloon is moistureproof to use outdoors. Designed from durable material, this party balloon is long-lasting to use in multiple events. This balloon decoration automatically locks the air in with its self-sealing feature to produce a firm and perfect shape. To streamline the inflation process, this graduation balloon can be blown up using a hand pump. This custom balloon can be inflated with air or helium. Featuring an aluminum silver finish, this helium balloon complements all kinds of party decor. With a built-in hanging loops, this custom balloon can be hung on walls or 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.