A party essential, these latex Silver Pearl Balloons feature a pearly silver shimmer. They'll fly high for up to 18 hours, and you can even extend the time by pre-coating each with a special balloon treatment (sold separately). Fill them with air, and the heavy latex material ensures they'll remain inflated for days on end. Seal the balloons by knotting the neck, tying them off with ribbon or using one of our plastic balloon clips. Silver Pearl Balloons product details: - 11in when fully inflated - Includes 10 balloons WARNING: CHOKING HAZARD - Children under 8 years can choke or suffocate on uninflated balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once.