Lay out a metallic sheen to your party room with our Balloonify Black Mylar Letter X Balloon. Styled in the shape of the letter X, this custom balloon is pairable with our other Balloonify letter and number balloons to create cute messages. This metallic balloon is made from mylar, and is durable and reusable. The self-sealing valve of this mylar balloon increases and maintains the shape and appeal of this balloon. Inflatable with something as simple as the hand pump, this graduation balloon is super easy to set up. Designed in a black metallic shade, this letter balloon is state-of-the-art. The built-in hanging loops of this party balloon equips it to be hung from walls and ceilings. Measuring 16 inches in length, this moistureproof foil balloon can be inflated with air or helium. 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.