3D Puzzle and Thinking Game Purchased new around 2008, used sparingly, and hasn't been used for many years. The puzzle has minor scratches and some dirt. The instruction manual has yellowing and stains. This is a puzzle for adults. How about exercising your brain? I am also listing other puzzles from the same series. The instruction manual will be folded to fit the shipping size, placed in a plastic bag, bubble wrap, and a cardboard box, and sent via Yu-Packet Post. Please understand that there may be folds and wrinkles. Please read my profile to prevent any problems. Thank you for looking.