Hanayama cast puzzles are the world's finest brain teasers! Are you up for the challenge? • Take the pieces apart and put them back together. • 6 levels of difficulty, each Mensa - rated. • Level 6 puzzles are a real tough nut for most puzzlers. These puzzles are perfect for anyone who loves a mental workout and wants to test their problem - solving skills. They're great for passing time during travel or just relaxing at home.

Use it when you have some free time, like during a long commute or on a lazy weekend at home. Targeted at puzzle enthusiasts, people who love a mental challenge, and those who want to improve their problem - solving skills. There are no specific technical specs like size or weight mentioned in the original content.