DESIGN: Lit the party spirit high with this elegant square-shaped X-letter balloon. Chic design featuring "X" letter in shiny silver over a bright multicolored background. Perfect for any letter completion, create fun names using other letter balloons. BOUQUET :Create a fine array of balloons by combining it with other letter balloons. Perfect addition to any party. HELIUM QUALITY: Visit your nearest helium gas provider and have the balloons filled with helium or simply use an air pump to inflate the balloon with normal air. Do not over-inflate. DISCOUNTED SERVICE: Visit your nearest Wanna Party outlet to get your balloon Air Inflated for FREE and we fill Helium Balloons at a discounted price if you buy from us. SIZE :This Foil Balloon measures 18 inches. Safe and non-toxic.