These furry tops are among the highest peaks on the main rings of Saturn. They have a deviation of up to 2.5 km from the vertical thickness of the main rings of the planet, which is usually only about 10 m.
But these mountains are far from solid. They constantly change their form, reacting to the natural satellites of Saturn.
Such pictures are possible only during the equinox of Saturn, which occurs every half-turn of the planet, or approximately every 15 Earth years. During the equinox, the angle of illumination from the Sun is reduced to the plane of the ring and causes structures protruding from the plane to cast long shadows on the rings.
This picture was taken with a Cassini camera on July 26, 2009, two weeks before the equinox, which occurred on August 11, when the Sun shone right in the annular plane.