This little support tool helps to hold the Precise180 number ring in place with the magnet holders.

You can glue the printed part onto the magnet holder, which will hold the ring better in place if a dart arrow hits it.

Attention: Please try which orientation works best for your board. You can put the gab outside or inside. In my case, two are mounted on the inside and two on the outside. Try it out before you glue the parts onto the magnets.