Mudder DIY Clock Movement Mechanism, 1/5 Inch Maximum Dial Thickness, 17/25 Inch Total Shaft Length (Black) Size: total shaft length is 17 mm (17/ 25 inches), thread shaft length is 8.7 mm (7/ 20 inches); Jump second movement, suitable for 2 - 5 mm (1/ 12 - 1/ 5 inches) thickness clock panel DIY clock movement mechanism: DIY quartz wall clock replacement movement parts is good for repair and replacement project; Turn your clock into an accurate time keeping machine Useful and good quality replacement: the clock repair tool part kit includes everything needed to repair, replace, or make your own DIY clock project Easy to install: the clock movements kits installation is very easily; Simple and delicate design and looks elegant, replacement part suit well to different styles clock frame Wide applications: applicable to cross-stitch, three-dimensional embroidery, craft clock, frameless draw clock, etc.