Smartwatch Accessories -Skeleton Quartz Clock Highlights Generic Brand Skeleton Quartz Clock Description: Front diameter 97mm, back diameter with rubber ring 91mm, thickness 33mm (without border, battery cover, button height when setting) Features: The quartz clock insert features a clear plastic lens and black Roman numerals for easy reading. Plastic Band Mounting System: Complete with plastic band gasket to firmly hold the insert in place allowing for a slight unevenness in the hole. The rubber ring is inserted into the side of the prospect bell and then directly into the craft. Power supply: requires 1 AAA battery (not included); Warm Note: Clock is designed for indoor use only, not weatherproof. Material: Metal, Plastic Package Include: 2pcs Quartz Clock Insert Note: As the above size is measured by hand, the size of the item you received might be slightly different from the above . Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.