Pigeon Mother's Milk Realization 200ml Heat-Resistant Glass x 2 Nipple SS x 2 Cap x 2 (Unused) I purchased and used these bottles, the same as those used in the hospital, for my daughter who was born prematurely. Since I used the 100ml bottles and nipples for premature babies immediately after birth, I used these bottles and nipples for about 3 weeks. I disinfected them immediately after use with Milton and a microwave sterilizer. I believe you can only purchase the nipples and bottles online. I disinfected them immediately after use. There are no noticeable stains, but there may be some minor oversights. Please understand that these are used items before purchasing!