Tabletop gridless distance/speed measure

Wanted to make tabletop rpg terrain without having to implement a grid pattern in everything i made.
So now measure with this amazing stick and keep the play area grid free.

I used a grid pattern i bought from wizards for the measurements. On this grid every 5ft measures to 15 mm. So every bracket ends at 15 mm.

[Update 09-08-2023]
measurement was wrong, 15mm was supposed to be 25mm. Made the print a bit thicker as well to make it have a better feel to it.