I started with the 9 & 11" set and ended up with both 9 & 11" and *8  & 10". I love them so much. The one think I keep telling my husband is not to have your burner on full heat. The non-stick last much longer if you do not use high heat.  My first set lasted at least 10 years. I have bought them for my children as Christmas gifts several times. Thanks for a great product.