●Get a free Concept One Step case with your purchase!● This offer ends without notice when supplies run out, so don't miss out! Neutralizing Tablets: 180 tablets Expiration Date: 2027/06 If you need cleaning solution (expiration date 2028/10 or later), you can add it for the following prices. Please inquire via comment before purchasing. ・4 bottles: 520 yen ・7 bottles: 750 yen ・11 bottles: 850 yen