3D Puzzles and Thinking Games Puzzle Collection 100% Natural Wood, Includes Instruction Booklet Retail Price: 1680 yen each Some are unopened, and some are opened, but the puzzles themselves have no scratches or damage. 【Diverse Puzzle Collection】 This product is a collection of puzzles with various designs. Each puzzle has a different shape and difficulty level, allowing you to train your brain while having fun. 【Series Information】 There are multiple series numbers in total, and each puzzle has a specific publication date. This makes them valuable items for collectors as well. Other numbers are also available, so please inquire in the comment section. 【High-Quality Materials】 The puzzles are made of 100% natural wood and are highly durable.