From Publisher's product description:
Set of Fearsome Forest terrain, including:
Large (4 inch) trees, with and without platforms for placing miniatures (shown above with).
Treeline walls, like dungeon walls for a forest environment.
Bushes, with and without berries.
a sheet of textured forest flooring available with square, hex, or no grid.
The Tile Selection Sheet, for creating custom 4x4, 8x4, and 8x8 tiles.