Bright Confetti 40th Foil Helium Balloon Discount Party Supplies 40" Number Foil and Latex Helium Balloons Set Party Theory SG 18 Inch Holographic Pink Happy 40th Birthday Foil Balloon 100 pc 40 inch Thickened Helium Foil Balloons Birthday Nu Grandado 40 Inch Balloon Animals Balloons Arch Kit Helium Walmart.com. Get ready to fly high with our 40 ish helium filled balloons! These 18 inch beauties will add a playful touch to any celebration. No need to take yourself too seriously, just enjoy the fun and quirky atmosphere these balloons bring! (Warning: may cause excessive laughter and joy. Use responsibly.)