Two-Clock Mechanisms Size: Short total shaft length 16 mm (0.63 in), thread length 8mm (0.315 in), suit for 3 - 6 mm thickness clock panel. Long Total sharft length 23 mm (0.9 in),thread length 15.4 mm (0.6 in),suitable for 9 - 13 mm thickness clock panel, These two clock movements can be used for almost any home wall clock. Silent Clock Mechanism: Clock movement use ultra-silent Scanning Design, Sweep clock movement without any noise which can offer your sleep a silent environment. All of your requirements are met by a simple and elegant design. Material&Package: The clock hands are made of high-quality metal, which is and resistant to corrosion. Includes 2 clock movements in different sizes, 5 pairs of hours and minutes hands, 5 seconds hands and second cap, easy to install, and many in one set. Wide Application: DIY quartz wall clock replacement movement parts, suitable for -, three-dimensional embroidery, craft clock, frameless draw clock, suitable for repairing, replacing, or making a clock, and also suitable for various styles of the clock frame (no battery) Warm Notice: Please double-check the dimensions of this clock mechanism replacement movement before purchasing; they are made of metal, and please do excessive pressure to avoid bending them. Colour:As shown Material:Metal Package Contents: 2 * movements 5 sets * pointers 1 set * screw washers Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.