Fit Body Iron light commercial half rack
well worth it
does not wear that much even with bars that have very big kneeling and very solid no issues so far and have had them for awhile now, best for squats when lifting heavy and trying to lock in very easy to place into cause of the high rubber.
buying another set so don't have to move them around to make life easy.
I bought these for my Body Iron FT750 Smith Machine Power Rack Functional Trainer, they fit perfectly and are very heavy duty.
I'm very happy with these j-hooks.