• Safe and portable: the puzzle boxes are made of quality wood, with water based coatings and smooth feel in hand, safe and no smell, let you rest assured to use; Each is approx. 5.7 x 3 x 1.77 inches, light and easy to carry, which is a practical toy to kill time
• Secret compartment: the puzzle boxes with hidden compartments provide interesting puzzles for friends and groups who want to understand the puzzle box and card holder, which are ideal gifts for people who like brain twists and brainteaser; The puzzle wooden gift box can also be applied as surprise gift box, card box and jewelry box; More importantly, it can keep your secrets without worrying about leaking out
• Endless fun: playing wooden puzzle box can not only exercise your brain, develop your intelligence and improve your ability to solve problems, but also relieve pressure and help relax; With this impossible box, your family and you will have a lot of fun
• Mysterious gift: the impossible dovetail box is carefully made of quality material with exquisite design details, which will be a good mysterious gift box for Christmas, Valentine's Day and New Year; Each wooden puzzle is very special and unique, which can train and develop your logic ability and improve your IQ, suitable for most ages
• Improve your ability: this puzzle box for adults provides a number of secret compartments waiting to be discovered, to concentrate your mind and hands, help improve your hands on ability, creativity, imagination and flexibility, and train your coordination ability