Not as stretchy as I was expecting though not too problematic. They feel like and stretch like rubber rather than the soft silicone I'm used to, being harder and more robust than all other cockrings I have thought the variety is welcome. They also have very prominent seams/mould lines on the inner and outer circumferences which is really not what you want on items you want to keep clean and that are in contact with sensitive parts. I like the range of sizes. Its a little more extreme than I've seen in some other sets.