Melody effect: the chiming pendulum movement plays the Westminster melody on the hour and automatically silences the chimes after 9 PM until 6 AM. Practical tools for you: these pendulum trigger clock movement replacement parts are suitable for designing and creating your own pendulum clock, and help in replacing or changing the appearance; please note that the hands are made of aluminum and should not be installed with excessive pressure to avoid bending. Type: Quartz Pendulum Trigger Clock Movement Chime Melody Kit Pendulum clock movement size: total shaft length is 17 mm (0.67 inch), thread length is 9.7 mm (0.38 inch); jump second movement, suitable for clock panels 2-6 mm (0.08-0.24 inch) thick. Hole center to tip hand size: hour hands measure approximately 70.5 mm (2.78 inch), 70 mm (2.76 inch), and 82 mm (3.2 inch); minute hands measure approximately 101 mm (3.98 inch), 92 mm (3.6 inch), and 117 mm (4.6 inch); includes 2 second hands approximately 100 mm (3.9 inch) each, and 1 second hand cap approximately 7 mm (0.28 inch). Color: As shown Material: Plastic + Aluminum Package Contents: 1 x Swing movement 110x56x20mm 1 x Gold pendulum 1 x Music box 3 x Hour hand 3 x Minute hand 2 x Second hand 1 x Second hand cap Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause slight variations in the color of the item compared to the picture. Measurement error allowance is +/- 1-3 cm.