ROELK501 Mechanical Wood Models; Pendulum Clock - with wind-up springROELK501 Mechanical Wood Models; Pendulum Clock with wind up spring Robotime ROKR mechanical wind up Pendulum Clock LK501 is a real wooden clock that can actually work! This stylish spring driven clock 3D wooden puzzle will provide you with an amazing building experience. Assemble all the pieces & mechanisms together and watch how it works. Best mechanical gears 3D wooden puzzle kit for your kids, boyfriend & husband. *Due to customs policy wax may