Clock mechanism with hands - Max. 10 mm. Mechanism clock with black hands on batteries. RoHS Certified. Can be used with all surfaces flat with a maximum thickness of 10 mm. The mechanism works with AA batteries, not included. Mount your own clock and bring the decoration you want. With the mechanism, three needles are understood: small needle: 8 cm, Embedded needles measure: hour hand 8 cm, minute hand 11 cm, needle seconds: 12 cm. . TECHNICAL DATA. Mechanism can be mounted on a board of maximum 10 mm. 3 needles: 11/08/12 cm. Sun housing: 5.5 x 5.5 x 1.5 cm. Plastic material Operates at 1.5 V battery Battery not included