5" Engraving Block Ball with Full Set Jewerly Making Accessories Vise Setting DIYEngraving block, ball vise with 12 pins, nylon jaws, and a rubber base allow you to have a secure and hands free grip on your piece while engraving, stone setting, and doing precision work Open the jaws and place your piece into the vise and you are able to rotate the ball or keep it stationary, putting your work where you need it It comes with pins and nylon plates to help avoid marring on your piece while working on it. It is perfect for hand