Size: the quartz clock insert overall diameter is 110 mm (4.3 inch); Suitable mounting diameter is 94 mm (3.7 inch); Mounting depth is 21 mm (0.8 inch), please check the size carefully before purchasing Metal mounting clips: quality of quartz clock fits up movement, comes with attached metal mounting clips Clear cover with gold border: the gold plastic rim with quartz movement is good for DIY crafts or replacing old clock faces; And the clear cover allows for easily reading the time Wide applications: the quartz clock insert features a gold colored trim, clear plastic lens, and black roman numerals make it fit for crafts or replacing old clock faces Needed power: just need 1 of 1.5 V AA battery (not included) can run a long time 4.3 Inch/ 110 mm quartz clock Insert, gold trim, Roman numeral, quartz movement Roman numeral clock insert: Clock mechanism features plastic rim and gold second hand, roman number is easy to read, good for craft projects and replacing mini clock faces. Dimensions: Overall diameter: 4.3 inch/ 110 mm Mounting depth: 0.8 inch/ 21 mm Fit round hole (mounting diameter): 3.7 inch/ 94 mm Battery: 1.5 V AA battery (not included) Package includes: 1 x Clock insert Warm notice: the clock is intended for indoor use only, not weather resistant.