Publisher's blurb: 8 Double-sided Pages, 16 modular maps that can be rotated flipped and rearranged, to design a huge array of outdoor terrains. Specifically designed with a myriad of 2-page transitions, including Grass to Forest, Grass to dirt (for road or beach), Forest to dirt, Dirt to Water, etc. so that as few pages as possible can cover all of your outdoor needs. Each page is printed on thick cardstock and laminated, wet and dry erasable. Comes with a plastic protective case. Available in 1" Grid Squares, 1" Hexes, and Gridless.