My brother is a powerlifter and uses chalk a lot, but he had never used a chalk ball. This review is his opinion on the chalk ball:
This is a very nifty idea, the sock thing. I always hate it when I drop my chalk and it breaks and covers the floor. This definitely alleviates that problem. It also seems as there is very little waste this way. My only concern is the quality of the chalk. If I am going to go to the trouble of creating something this great, I am going to fill it with a quality product. This seemed to me to be a mix of half pool cue chalk and half lifting chalk. I would never be able to use this for a heavy workout (he lifts over a thousand pounds, at a weight of 130) when grip might be an issue. As it is, I would give it 6 out of 10 sugar cookies. If they put quality chalk in, easily 9 out of 10.
To purchase this, click here