Welcome to Multifit Store, and thanks for your support and trust.Wooden Burr Puzzle is a traditional Chinese puzzle game for brainteaser and relieve people's pressure.Now, our burr lock features in a 3D Twin Star shape, surpassing the other normal puzzles, which is freshing and creative.The internal structure of these 3D puzzles are engaged, very artful and delicate.It looks simple at your first sight, but when it takes apart you will feel very puzzled to reassemble. Take patience and careful observation, it would be solved while you get the point of the solution. Made of wood with the size of 4X 2X 2inchesLX W X H, and totally counts for 12pcs.Recommended for kids age of 5 and up, children should be playing under adult supervisionadult is also recommended.To make it challenging and fun, parcel without paper instructions, if you need solutions, please contact us.It is a puzzle that will entertain and challenge all ages, and definitely will be an amazing gift for birthday, festivals, Valentine and so on.Hi: dear friends, If you are satisfied with our service and product, please give us the positive feedback. We would appreciate that very much.