Movement components measure 5.5 x 5.5 x 1.5 cm/2.1 x 2.1 x 0.6 inches (as shown in the picture) Clock hand length: 52-167 mm / 2.046.57 inches (as shown in the picture) Shaft length: 12 mm/0.47 inches (as shown in the picture) Thread length: 5 mm / 0.19 inches (as shown in the picture) Power supply: 1.5V AA 1 x battery (not included) Second hand movement: sweeping the floor Made of high-quality plastic and aluminum, and corrosion-resistant. Ultra-quiet scanning design. The sweeping clock movement is noiseless, providing a quiet environment for your sleep. 7 sets of clock hands of different lengths to match different sizes of clock dials. You can meet all kinds of watch needs. easy installation Application: Repair, replace or make clocks, suitable for , three-dimensional embroidery, craft clocks, frameless clocks, etc. Notice:Some watch parts are made of aluminum, please do not install them with too much pressure, otherwise they will bend. Colour:black Material:plastic+aluminum Package Contents: 1 set x quartz clock movements 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.