20mm total shaft length, 11.7mm thread length fit for 5-9mm thickness clock panel. Great Quartz mute clock movements with 2 hands, golden hex nut, golden metal washer, black rubber washer. Fit clock dial over 15inch diameter, suitable for repairing, replacing the broken parts of a clock or serving as good handwork material to make a clock by yourself. This clock movement replacement need 1xAAA battery (NOT INCLUDED) to work. Just use your imagination to create your own style silent wall clock, can be a good gifts for kids DIY crafts for time. Specification: Material: Plastic,brass ,aluminum Shaft length: approx. 20mm Minute pointer Length: approx. 175mm (from fix hole to tip) Hour pointer Length: approx. 133mm (from fix hole to tip) Package Includes: 1 Set Quartz Wall Clock Movement Kit Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size.