Erwin's diamond set

World Cup serviceman Erwin wasn't entirely satisfied with the diamond stone selection on the market and decided to create his own set. This set, consisting of four stones ranging from 200 to 1000 grid, is CNC-milled from high-quality aluminum, resulting in a very precise finish. The high-quality material adds extra weight, making the stones comfortable to hold.

When the diamonds wear out, the diamond structure can be replaced.

The set of 4 diamonds comes in a handy storage box.