Traditional in style the MOVA Rotating Blue Ocean Relief 4.5-Inch Diameter Desk Globe features vibrant blue oceans and classic relief cartography. Countries cities and bodies of water are all labeled. Inspired by the earth itself this unique globe is among the world`s most advanced. It rotates silently without the need for batteries or power cords. Create a tasteful display in your home or office with the included 3-fingered acrylic base.The MOVA globe is powered only by natural light and the fo rce of the earth`s magnetic field. It contains an inner globe that rotates within the fixed acrylic outer shell. The space between them is filled with a clear non-toxic fluid that provides buoyancy and prevents contact between the two globes. The inn er globe floating and turning in a virtually frictionless environment is akin to the earth itself. A highly efficient drive mechanism within the inner globe ensures rotation in virtually any ambient light. Solar cells harness that energy and a magnet ic element reacts to the earth`s magnetic field in the manner of a common compass to provide torque.The optical properties of both the outer shell and fluid have been carefully chosen to magnify features on the inner globe. As a result the outer glob e appears to rotate despite resting on the stand in quiet defiance of commonly held ideas about the laws of friction. This globe measures 7.25 inches high with the display stand. Beautiful and arresting it will form a meditative point of focus for an y room.See our Globe FAQs