So I just got a 55 pd dumbbell, cut the bar off and am stuck with two block weights I cannot lift with one hand. I don't know if that is weak but I decided to tape sand paper to each side to improve the grip. These are tremendously hard to lift and tax the complete lower arm. Does anybody have any experience with these or any exercises they found beneficial. They seem like the best hand exercise for kung fu application I've come across, of course that is aside from actual kung fu and iron palm.