Rubber Steel sheets are impregnated with iron to allow magnets to stick to them while remaining flexible and hardwearing. Simply cut the self-adhesive sheet to size and affix to your painted movement tray to allow miniatures with magnetic bases to stick to it. They comes in handy for many craft applications, especially in wargaming where it can be used to make your own magnetic movement trays and display bases, providing far easier movement of troops around the battlefield. The colour of the sheet is quite attractive for any movement tray.