Abstract: An exercise device for promoting the natural movement and agility of facet joints in the spinal column is described The device is a facet joint exerciser having a pair of spheres rotatably mounted on a shaft that is assembled in a frame. The frame has a mounting yoke that attaches to a track. The track is mountable on a wall or other vertical surface. The frame is adjustable in height on the track. The spheres are dimensioned and spaced apart such that they can be pressed up against the spinal area of a person, so that the balls are close to either side of the spine and press into the support tissue on either side of the spine.