Total body training device Functional core training through multiple planes of motion Abdominal, shoulder, lats as well as hip flexor muscles are worked through a wide range of motion as the user increases functional core strength and endurance. The UFO-shaped knee board has multidirectional wheels that allow the lower body to move forward, backward, or side-to-side during use. Soft gel knee wells provide comfort and stability. The 6" padded PVC handles support the user´s torso during training. Base made of hard PVC. Assembly required. Color: Blue. Dimensions: 19" diameter x 8" H. Wt. 8 lbs.