Large Leather Bag with one round end.
This Large leather bag Lazze likes beacues of one end has a straight ned and the other has a round end and that helps you to easier to have a panel to fit somewhere on the leather bag when you do some adjustments with the hammer.
It comes empty and you fill it with dry sand or glass beads which has very little friction.
Fill it as full as you can and then close the opening.
The leather will stretch little when you using it.