You are bidding on a bag of 100 O ring seals to fit standard garden hose connectors  Hoselock, Hozelock, Gardena etc including all brass fittings as well as they are all this standard size. These are EPDM rubber which resist sunlight which is the main reason these seal fail prematurely in the first place.Most seals sold for this purpose are made of Nitrile rubber which will fail in the first year if subjected to sunlight.