LockTight - Rectangular Doors

This is the prototype (And with Prototype I mean of course the 3rd iteration) of my RPG Dungeon System, called LockTight. It uses 5mm magnetic balls to keep the tiles together. Unlike Most Dungeon Systems who create 2x2 Tiles this system has both 2x2 and 1x1 tiles for more controll over the details and roomsize you want to create. Plus each tile is slightly larger then the usual 25mm. this gives the player the oportunity to poisition figures even if there are walls on the same tile. The total si