UGears Mechanical Treasure Box is a unique IQ teaser puzzle that has been dynamically engineered to be self-assembled. The assembly kit consists of intricately carved woodwork of the highest quality that is eco-friendly. The delicate carved work of its lid and sides invites you to gain a glimpse into the mystery that the moving gears conceal. Assembling this high precision model is not very difficult, and it can be set up in just a couple of hours following judiciously the well detailed operational manual that comes with the UGears. Laser cutting technology employed for high-level precision and finishes making the dimensions of the parts of the treasure box highly accurate. After assembly, this delicately carved work of wooden puzzlesa lid and sides invites you to gain a glimpse into the mystery that the moving gears conceal. The box contains a compartment that can be open and closed with an exquisitely carved key that can be used to set the gears in motion by turning it clockwise. The box compartments can be used to store your treasures like jewelry and memorabilia. With UGears Treasure Box your secrets are safe. Size:' 5.6 x 5.6 x 3.6 in Package size: 14.6 x 6.7 x 1.3 in Number of parts:' 190 Level:' Easy Assembly Time:' 2-3 hours Recommended Age: 14+ Kit weight:' 1.84 lbs Manufacturer: UGears