NEW Heavy Duty Pendulum Drive MechanismThis is a brand new Pendulum Drive Mechanism. It will run up to a Grandfather size Lyre Pendulum! Saves money over a mechanical movement. Because the mechanism is top driven you can design clocks where the pendulum is in the open. The case size is 8-3/8"H x 3"W x 2-1/8"D. Runs up to a 41" pendulum weighing up to 8oz. Great for large or small wall clocks. Mounts inside the case and requires a depth of 2-1/4". Has a detached battery compartment and requires 1 'D' battery, not included. Shipping listed is for ONE ONLY, within the United States. If you need more than one or want International rates please email me. We do ship world wide and always TRY to ship the same day payment is received. Be sure to check out our many other clock related auctions & store. We will always combine auctions to save on shipping as long as your purchases are made on the same day. Please email me for combined shipping rates.