Heavy Duty Clock Pendulum Drive Mechanism Large Pendulum Swinger This heavy duty pendulum drive mechanism will run up to a grandfather size lyre pendulum! Saves money ? allows the use of an inexpensive battery movement to run the time, freeing you from the use of expensive mechanical movements. Because the mechanism is top driven you can design clocks where the pendulum is in the open. Great for large or small wall or floor clocks. Mounts inside case. Pre-drilled mounting holes. Specifications: Size: 8-3/8?H x 3?W x 2-1/8?D Requires 2-1/4? depth Runs up to a 42? lyre pendulum with a 10-1/2? bob Detached battery compartment with easy clip wire attachment. Size is 1-1/2?W x 2-7/8?H x 1?D Requires 1 ?D? battery (not included) Comes with instructions We have many more items in our store. https://www.ebay.com/str/ronellclockcompany Shipping shown is for ONE item (or set) shipped within the United States. We always try to ship the same day payment is received. Please email us if you have any questions. We?re always happy to help! Please allow 24 to 48 hours for us to respond during the week. We are closed on the weekends. We always respond as soon as we can. Please also note that depending on your local tax laws, may collect income tax at check out. We do ship worldwide. For international sales, please check local customs/duties for fee rates before ordering. In most cases customs and duties will be collected at the time of delivery and they are not a part of this listing. Combined Shipping: Ask us to send you an Invoice! We are always happy to combine shipping on multiple items. Please email us for a quote or put all desired items in your shopping cart and request a total before you pay. We will determine the weight and cost and send you a total for the order. Any combined shipping offers apply to orders placed on the same day. Return Policy: Incorrectly ordered items must be returned at the buyers? expense and in the original condition. A refund of the purchase price will be given. In the rare case that an item is defective, we will work with you to resolve the issue. Please contact us, so we can help. Always contact us before leaving feedback or opening a case so we can work with you! Thank you for shopping with us!