Name: wooden sphere puzzle. note the size: 2. 95 x 2. 95 x 2. 95 (inch). Colour:Wood color Material:wood Recommended for ages 5 & up, children should be used under adult . It is a puzzle that will entertain and challenge all ages. Hard to take it apart, harder to . When assembling requires careful observation and thinking, analyze internal structure. mind puzzle help to exercise , develop intelligence, problem-solving , and also relieve pressure. Tips: paper instructions and video link qr code is prepared, in order to challenging and , we suggest you try your best to unlock this wooden ball puzzle without instruction. Burr Puzzles have been found in Europe and since the 18th , It embodies the of the ancients, Burr Puzzles can take on many shapes, from the burr seed shape, to balls, stars, and more. This Burr Puzzle is specially designed to disassemble and reassemble, wooden Puzzles are classic and Puzzle Game toys. The wooden puzzles may look simple, they contains lots of mysteries, they are usually easy to disassemble difficult to . Each wooden Puzzle is and unique. Playing with wooden Puzzles can not only exercise , develop intelligence, problem-solving , also relieve pressure, mood and gain pleasure. You and family will have quite a lot of through this toy. Package Contents:1 x Burr Puzzles Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.