Every puzzle is about 2″ x 2″ and is individually packaged with solution.1 unique bamboo wooden puzzles chosen at random. There are 8 different designs of the eco 3d bamboo mini puzzles, with 3 grades of difficulty. Very addicting games, once you start, you don`t want to stop. Puzzles constructed of beautiful bamboo wood which is one of the most sustainable and environmentally friendly trees.