Walnut Hollow Pendulum Clock Movements are Quartz clock movements that offer watchmaker's accuracy and dependability. These are suitable for repair or restoration of all kinds of clocks. Or you can create your own unique timekeeper. The Large Pendulum Clock Movement is for a 3/4 inch clock surface and includes one built-in hanger, minute-second-hour hands, and hardware to attach movement. 15/16 inch shaft length. 9 5/8 inch pendulum length 2 3/4 inch diameter. Uses 1 AA Battery (not included).