I noticed that some managed to install [SkiGrip](https://exxentric.com/store/kpulley-cat ... rip-elite/)-like handles on SkiErg. Where do I buy those (preferably EU but US shops also work)? Your experience using them?
The elite sometimes use them on SkiErg (see e.g. [here](https://www.youtube.com/watch?v=tTEQNv6n3j8)).