Set Contents: ① Hospital/Clinic Feeding Bottle (Direct Attachment Type) KR-100, Heat-Resistant Glass, 100ml, 3 bottles ② Nipple for Weak Sucking WS-2 (WS-2), 2 pieces ③ Caps, 3 pieces Caps to prevent dust during storage. *Does not provide an airtight seal. Used during the newborn period. Although cleaned and sterilized, please sterilize before use. Thank you for looking.