A set of 2 S-sized nipple protectors to protect nipples and support breastfeeding. - Brand: Pigeon - Model: Nipple Protector - Size: S (13mm) - Quantity: 2 pieces - Case included: Yes I haven't used them even once because the baby latched on without them after I was discharged from the hospital. They have been opened, so please refrain from purchasing if you are concerned. Thank you for looking.