"Slotta" Base for 28mm scale fantasy and war gaming figures.
Size: 20 x 20mm (standard infantery)
This base has a rim around the top side to help with sculping the "ground" under the figure.
The upper part is slanted outwards to make it easier to grip (always better to touch the base than the model).
It has also a round slot on the underside (diameter 5mm, depth 2mm) to fit a magnet into.
I've also made a model of four of the same bases in a sprue for recasting.