Promotional value expires 120 days after purchase. Amount paid never expires.All voucher sales final once redeemed; no returns unless item is defective. Limit 3 per person. Limit 1 voucher per order. Valid online only. Must use promotional value in 1 visit. Free shipping. Does not ship to Canada. Most orders ship within two business days from the redemption date, but the custom aligners may take up to six weeks to ship. Merchant is solely responsible to purchasers for the care and quality of the advertised goods and services.Learn about Strike-Through Pricing and Savings