Ok, whoever first thought to make bearing style balls on shower clips was a genius, and this product is proof. I actually had almost identical clips to this without rollers and have torn many a shower curtain. These glide smoothly no matter what and have never gotten stuck. The rollers stay at the top and don't get loose. They are easy to attach and stay snug once on using a clothespin-like locking mechanism. They are sturdy enough to hold an inner plastic curtain and a fabric outer curtain for those fancy types also.

2 thumbs up. GET YOURS HERE ON AMAZON

* I received this item free or at a discount in exchange for my honest opinion