I purchased these on Mercari, but they didn't suit my children, so I used them 2-3 times and then stored them. The nipples are the ones that came with the bottles, and I used them the same number of times. I've only washed them with a gentle detergent. Please note that the sizes are different: Combi...240ml NUK...150ml There are no scratches or stains, but please check the photos carefully! *No individual sales. *No price reductions, please. I have a cat, so please only purchase if you understand!