I used them a lot when I was still at the gym; they do the job, the grip is simple, but they're not the most fun to use

I only have the massage roller; it's not great, I'd like to change it for a flat roller.

This is the first pulley system I ever had, and I was able to complete about twenty exercises from my initial workouts! It's really the foundation if you can't get a pulley machine, or if space is an issue; it's very compact. It has a 100kg weight capacity, which is more than enough. The swinging motion definitely needs improvement, but it's a great starting point for getting into pulley systems.

I replaced all my grips with these and it was a good choice! Quite comfortable and prevents slipping

Awesome! It literally changes the grip for pulling exercises! Neutral grip, supinated grip, pronated grip—it's really cool! I use it for lat pulldowns, rows, Romanian deadlifts, and landmine exercises.