【SUBTLE DESIGN】-- No nailing or gluing required. Relies entirely on the connecting support of its own structure. The tenon and mortise structure is used to combine to form a lock, which is tightly connected, reflecting the ancient culture and wisdom. (Tips: Pictures and videos have unlocking and assembly instructions, but to make it challenging and interesting, it is recommended that you try to unlock this three-dimensional puzzle without instructions.)

【PRODUCTION PROCESS INNOVATION】--Unlike most wooden Kongming lock puzzles on the market, our products are made of environmentally friendly material (high-quality ABS plastic), using an injection molding machine with high-precision molds for injection molding. This significantly improves the quality and user experience while retaining the texture of wood.

【CRAFTSMANSHIP QUALITY】-- (1) High precision, flawless; (2) Does not expand if it gets damp, no odor; (3) The surface is smooth and without burrs; (4) The 3D puzzle has passed the American safety certification.

【MULTI-FACETED DEVELOPMENT】-- (1) This is a classic puzzle game that allows children to return to tradition, play to learn and learn to play, stay away from electronic products; (2) Effectively improve your child's concentration, reaction ability, memory and logical thinking; (3) Develop your child's patience and feel the sense of accomplishment after solving the problem and increase your self-confidence; (4) Not only for children, but also for adults to relieve stress.

【PERFECT AND UNIQUE GIFT】-- With its unique and novel style, brain teaser toy for teenagers and fidget toys for adults. Safety, fashion, give as gifts for birthdays, Christmas and other holidays to your child, lover or friend. Warning: not suitable for children under 3 years old.