The metal hollow pointer, the movement is no noise, the time is more accurate; the dte pattern, the lines are clear, uniform and full of color, highlighting the exquisite craftsmanship. Runs calm and smoothly No more loud annoying ticking sounds, simply enjoy peace as time goes by Battery powered and easy to install, suitable for normal batteries (but not included), do not use high performance batteries. Double-sided wall clock, 360° rotating dial, Arabic numerals and Roman numerals, e, firm and non-deformable, bright color. allows for indoor or outdoor use.