The Mag Bases are wargame bases for use with wargame miniatures. Mag bases have a black plastic top and a heavy duty permanent magnet bottom. The thickness of the base is just under 3/32” (2mm). The bases are made to exact size plus or minus 0.010” and have a clean accurate cut. Mag bases over 60mm x 40mm need to be reinforced to keep from flexing and in most cases the figure’s base being mounted is enough. When applying figures to the Mag bases you will need to use glues suitable for bonding plastic and/or metal. Most household glues for bonding multi surfaces will work well. White glue will not work. Also slotta figures cannot be mounted on to Mag bases unless modified appropriately. I can make any size you may need. If you do not find the size Mag base you would like listed email me at order@shogunminiatures.com and I will let you know if I can produce that size and the cost.