Set Contents: ★ Pigeon Hospital-Use Nursing Bottle (Direct Attachment Type) Milk-Feel KR-100 (100mL): 3 bottles ★ Pigeon Milk-Feel Direct Attachment Nipple: 3 pieces The above 6 items are the basics. Nipples and caps for nursing bottles: Sterilization by boiling, chemical solution, and microwave is possible for all. *One set is brand new and unused! *The other set was used for about 3 weeks, but the condition is good.