Littlefun 3D Wooden Brain Teaser Puzzles Building Brick Chinese Traditional Interlocked Lock Block Intelligence Travel Toys Adults Leisure Games (9 Pieces Set) 9-Piece-Set Assembly Disentanglement Puzzle Box(9 Different Chinese Traditional Interlocked Cube Puzzles ), Come with Littlefun Keychain as a gift Made of High-Quality Rubber Wood Timber Come with Graphic Illustration, Great leisure game for road travel or home Degree of Difficulty:4-Star(Five-Star Full Marks), Suitable for adults or children above 6 years old Packed with Elegant Window Gift Box, Best Gifts as your kid's first intelligence development toy