【Product Name】 Huzzle CAST Master Ball (HANAYAMA / Difficulty Level 6 / Most Difficult Model) 【Product Overview】 This is the Master Ball, boasting the highest difficulty level in the globally popular metal puzzle series "HUZZLE." You can enjoy disassembling and reassembling it by solving the hidden lock structure within the sphere. It's a perfect item for brain training and collecting. 【Condition】 Brand new, unused 【Shipping】 ・We will carefully package the item and ship it via Yu-Packet Plus. ・We aim to ship within 24 hours. Thank you for reading to the end. Recommended for those who love brain-teasing puzzles.