This Chalet style pendulum is for one day cuckoo clocks with the chalet style theme.
The rod that the pendulum leaf is on is 7 inches long for both the smaller unpainted and also the painted pendulums, and 10 inch long for the larger unpainted version. The size indicated on the drop down is the width and length of the pendulum leaf itself.
The pendulum decoration is able to slide up or down to adjust the time keeping of the cuckoo clock.
Up with the center decoration makes the time faster, and down is slower time.