I have had these shower curtain hooks in my bathroom for about a month now & the beads allow fro a smooth glide on the shower curtain rod without catching where the rod extends. I also have high iron water (unfiltered) & these have been amazing for not having any rust/iron deposits. The double sided hooks allow for a decent separation of the shower curtain from the liner, helping to keep the liner on the inside of the tub/curtain on the outside.