Two Clock Mechanisms Size: Short Total shaft length 16 mm (0.63 inches), thread length 8 mm (0.315 inches), suitable for 3 - 6 mm thickness dial. Long Total shaft length 23 mm (0.9 inches), thread length 15.4 mm (0.6 inches), suitable for 9 - 13 mm thickness dial. These two clock movements can be used for almost all home wall clocks. Silent Clock Mechanism: The clock mechanism uses an ultra-quiet scanning design, sweeping clock mechanism without any noise that can offer your sleep a quiet environment. All your requirements are met by a simple and elegant design. Material: The clock hands are made of high-quality plastic, which is lightweight and corrosion-resistant. Includes 2 clock movements in different sizes, 5 pairs of hour and minute hands, 5 second hands and second caps, easy to install and many options in one set. Wide Range of Use: DIY quartz wall clock replacement movement parts, suitable for cross stitch, three-dimensional embroidery, craft clock, frameless drawing clock, suitable for repairing, replacing or making a clock, and also suitable for various styles of clock frame (no battery) Warm Note: Please check the dimensions of this clock mechanism replacement movement carefully before purchasing; they are made of plastic and do not apply too much pressure to avoid bending them. Color: Photo Color Material: plastic Package Contents: 2 x movement 5 sets x hands 1 set x accessories Only the above package content, other products are not included. Note: Light shooting 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 +/- 1-3 cm.