When I got these rollers I was super excited to see if they'd fit my monster lite rack. The good news is they did fit pretty well and I started using them. They are really well constructed and was really impresses with the price. One small problem which makes these unusable for benching. Why why why did you make the j cup lip so long and stick out so far on an angle? All you need is an a 1/2-3/4". I regret purchasing these now. Not sure if I can sell them or what but I need to sit so far forward when benching to clear the j hooks that it defeats the whole purpose. For squatting, ohp, they woils be fine. I got only for benching and am so disappointed in the engineers for making this lip so long...do they even lift?