Beauty and creativity come together in the Plus Plus Puzzle By Number 800-Piece Earth Puzzle. This jigsaw puzzle blends a traditional puzzle setup with a paint-by-number approach, allowing you to hang your finished work when you're done. Plus Plus manufactures the Earth Puzzle in its zero-plastic-waste factory in Denmark, powered by 100% wind energy. Made from low-density polyethylene, the Earth Puzzle is BPA- and phthalate-free.