Good for those small exercises that one can't do with freeweights. I use it for slight rehab on a knee. It's perfect for that. With the door stoppers you can get angles that really help (if you have old joints). Of course it's all very light, so I can't see doing anything heavy (for those looking for something to supplement freeweights, such as wrapping around barbells when doing squats and so forth) with these, but they're good so far and seem to be made to last.