Pendulum clock movement size: total shaft length is 17 mm/ 0.67 inch, the thread length is 9.7 mm/ 0.38 inches; Jump second movement, which is suitable for 2-6 mm/ 0.08-0.24 inches thickness clock panel. Hole center to the tip hand size: the hour hands measure approx. 70.5 mm/ 2.78 inch, 70 mm/ 2.76 inch and 82 mm/ 3.2 inch, the minute hands measure approx. 101 mm/ 3.98 inch, 92 mm/ 3.6 inch and 117 mm/ 4.6 inch, and 2 second hand are approx. 100 mm/ 3.9 inch, 1 second cap is approx. 7 mm/ 0.28 inch. Melody effect: the chiming pendulum movement plays the Westminster melody on the hour, automatically silences the chimes after 9 o'clock pm until 6 o'clock am. Practical tools for you: these pendulum trigger clock movement replacement parts are practical for you to design and make your own pendulum clock, help you to replace and change a different look; Please notice that the hands are made of aluminum, don't install them with too much pressure or they will be bent. Colour: black Material: plastic Package Contents: 1 * Swing movement 110x56x20mm 1 * Gold pendulum 1 * Music box 3 * Hour hand 3 * Minute hand 2 * second hand 1 * second hand cap Only the above package content, other products are not included. Note: Light reflection 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.