Thank you for viewing! ✨ ☆ Instant purchase welcome • Purchase without comment OK ☆ Unused ☆ Bulk purchase welcome. Feel free to comment. ☆ Items may be shipped without boxes or bags. ☆ Yu-Yu ⇄ Rakuraku Mercari delivery may be changed without notice. # Click here for a list of asa shop products [Product Description] For super advanced users! This is a "9-piece set of puzzle rings" that gives you a maximum sense of accomplishment when solved. This set brings together super difficult levels with a difficulty level of ★★★★★, and is a full-fledged metal puzzle that makes you use your brain to the fullest. It is also ideal for brain training, improving concentration, and killing time for adults. [Recommended points] ・High difficulty for super advanced users (difficulty MAX) ・9 types of puzzle rings with a wide variety of variations ・Durable and luxurious metal construction ・Ideal for brain training to improve concentration ・Recommended for adults as well as educational toys [Set contents] ・Puzzle rings x 9 pieces ・Comes with a dedicated package [Condition] ・New and unused [Notes] ・Target age: for adults ・If used by small children, please use under the supervision of a guardian. This is a challenging puzzle ring set that makes you use your head every time you try it. Recommended for your own challenge or as a gift for puzzle lovers.