The Hasbro Gaming Rubik's Solve The Cube Bundle 4 Pack Master set is a strategic puzzle set that includes four cubes in different shapes and sizes. Made of plastic, each cube features a colorful, multi-color design that challenges players to twist and turn the pieces to solve the puzzle. With a theme centered around strategy, this contemporary puzzle set is perfect for brain teasers and twist puzzle enthusiasts looking to test their problem-solving skills.