These rings fit snugly around your players bases*. Pick a colour for your skilled players to stand out from the rest - for example: Blue for Block, Green for Guard etc. (Blue Opaque and Green Opaque pictured)
They come in 25mm and 32mm diameter. 
* these are cut to fit GW bases. Other manufacturer's bases may differ in size slightly.

Made from 3mm Perspex and available in a variety of colours.

Miniatures and pitch not supplied!