This is the best deal on solid weights you can get. They interchange nicely with other standard weights too (I bought 2 additional 50 pound weights for the barbell). The screw locks work well, the surfaces are all smoothed properly, and they look good on the bench. I recommend these weights over the concrete filled plastic weights as they will look nice and last forever even though you might spend an extra buck or two. I rated these as excellent for standard weights. If you really want to invest, and are a lifter of weights over 50 on dumb bells and 100 on the barbell however, you should go the extra dime and get Olympic weights.