Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si Name: wooden sphere puzzle. Please 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 supervision. It is a puzzle will entertain and challenge all ages. Hard to take it apart, but harder to assemble. When assembling requires careful observation and thinking, analyze internal structure. Our mind puzzle help to exercise , develop intelligence, problem-solving ability, and also relieve pressure. Tips: paper instructions and video link qr code is prepared, but in order to make it 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 century, It embodies the wisdom 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 popular Puzzle Game toys. The wooden puzzles may look simple, but they contains lots of mysteries, they are usually easy to disassemble but difficult to assemble. Each wooden Puzzle is special and unique. Playing with wooden Puzzles can not only exercise , develop intelligence, problem-solving ability, but also relieve pressure, relax 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 the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.