Shiny foil balloons 18 Inches balloons, without air inflation. Easy to inflate using the a straw or an air handheld pump. Self sealing, reusable. , , These foil birthday balloons are ideal party decoration for all ages. They can easily match any party theme and decor. They have a beautiful metallic sheen to them because of which they beautifully shine when exposed to light. Made of excellent quality aluminum foils, these balloons for birthday party are durable, thick and have uniform color.