Are you using a Mahlkonig EK 43 grinder? The geniuses at 3FE Coffee in Dublin wanted to have a better way to keep measuring minute changes on the EK43 grinder and to know where they had the grind last. So they had a custom dial made to fit the grinder and laser engraved with measurements. Available in 5 snazzy colours. (Red, Black, Blue, Silver, Green)