Description: Dimensions: Front diameter 103mm/4.06inch; Back diameter 94mm/3.70inch; Mounting depth is 28mm/1.10inch. (Excluding the height of the battery cover and the timing knob) Design: Gold roman skeleton clock insert features a clear view of its internal rotating gears. You need 1x AA battery (not included). Quartz clock insert with gold metal frame, gold movement, black hands and Roman numerals, easy to read. Directly inlaid and fixed on the clock base, you can DIY the clock yourself, or you can use it to repair or replace a broken clock, read the time easily, and prevent dust from entering the dial. Classic Style: Suitable for classroom, office, living room, guest room, meeting room, dining room or any other place. Specification: Material: Metal Battery: 1 x AA battery (Not Included) Size Chart: Front diameter: 103mm/4.06inch Back diameter: 94mm/3.70inch Installation depth: 28mm/1.10inch Package Includes: 1 Piece Clock Insert Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!