What all a dressmaker should be able to do :-)
We bought an old iron slab and my boyfriend and I cut it in alike blocks.
This is the final appearance of the wrist weights. You can see how the weights are inserted in the little pockets. They can be combined arbitrarily to form different weight for a hand.
This young body-builder let me take a picture of him and the wrist bands on:)
They are really heavy.