A party essential, these helium quality Royal Blue Latex Balloons inflate to 12 inches high. Fill them with helium for 18 to 24 hours of flying time; fill them with air, and the heavy latex material ensures they'll remain inflated for days or weeks on end. Seal the balloons by knotting the neck, tying them off with ribbon or string, or using one of our plastic balloon clips. Package contains 50 Blue Latex Balloons. WARNING: CHOKING HAZARD - Children under 8 years can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once. NOTE: Balloons Arrive Uninflated.