Retail Price: Total of 7 items: 6,710 yen SS size: 990 yen each x 3 = 2,970 yen S size: 1,870 yen each x 2 = 3,740 yen Purchased new at Akachan Honpo, but we switched to other sizes without using them much. Suitable for newborns to around 3 months. Sterilized with Milton and in the microwave. They can still be used without any problems! Nipples are expensive to buy at retail price, so honestly, this is one item that was fine to buy used. How about these at a low price for preparing for childbirth or supplementing your supplies while raising a child?