Color: black material: abs(a crylonitrile butadiene styrene) size: approx. 5.5 x 11cm/2.17 x 4.33'' power supply: 1 x aa battery (not included) for the swing clock with movement shaft 22mm (thread 5mm) the pendulum is for decoration only and does not affect the clock movement's timekeeping this pendulum clock movements will drive any light shape making them ideal for novelty clocks complete with removable hanger package included: 1 x replacement quartz clock movement mechanism