Got these with the rack, as they allow for more movement than the standard or 2" sandwich versions. They work with all my bars, Only time im not using them is when I use the rollers with a straight bar when benching and squating
Love this sandbag, mostly use it for holds for time, one side is rubber grip textured and the other with the same strong material that's on all sandbags
When I got rid of my atlas stones I got this, has been great for over 4 years, use it with my flip down spotter as a sandbag over bar, never seen a grain of sand since i put it in