In its original packaging unopened. However, in the pictures you can see someone wrote on the front and on the back.

This vintage Parker Brothers Instant Insanity 3D Puzzle from 1986 is a rare find, still new in its original packaging. The puzzle consists of four plastic cubes in various colors, and is perfect for puzzle enthusiasts who enjoy a challenge. The puzzle's theme is strategy, making it a great addition to any collection.

The puzzle was manufactured in China and has not been modified in any way. It contains no custom features, and is sold as is. This puzzle is a great way to test your skills and challenge your mind. Don't miss out on the opportunity to own this rare vintage puzzle.