Description M.POWER’s Diamond Stone Holder has a good number of advantages over it’s predecessors. To start, it can hold a large range of different diamond stone shapes and sizes and not just our new Diamond range either. From a solid 8” bench stone to any old Credit Card diamond stone. The DSH’s rare earth magnets lock onto the underside of the stone providing instant grip between bench/work-surface and Diamond stone. OK so there is a piece of non slip mat that can do that. Except that the DC DSH (unlike the spongy mat) provides much needed clearance. So when you’re sharpening a knife, the DSH raises the sharpening surface so that the knife handle doesn’t hit the surface that you’re working on.