Features: .Using birch plywood, fine wood, uniform color, laser cutting technology, high precision, clean board surface, good fit of parts, stable assembly .Every corner and surface are finely polished and polished to ensure no sharp points, no burrs, and a model that can be rotated without electricity .The product does not need to be glued during assembly. The design is exquisitely hollowed out. Turn the clockwork knob in the lower left corner and the gears can move the pointer slowly. After rotation, the rubber band will tighten. When released, the rubber band will drive the gear to run. 7 minutes (Note: Please follow the instructions, rotate a certain number of turns, not too much, otherwise the rubber band will break), let's observe the magic of the mechanical pendulum clock. .After assembly, it can be used as a model decoration to exercise children's hand-eye coordination, hands-on ability, spatial cognitive ability, and thinking ability .Suitable for over 14 years old Specifications: .Color: As Shown .Material: Birch Plywood .Product Dimensions: 14 x 11 x 22.5cm .Product Weight: 700g .Package Dimensions: 38 x 18 x 4cm .Package Weight: 750g .Packing: Box Package Content: .1Set x Puzzle Toy .1 x Chinese and English Graphic Manual