Aground-based rotational training device thatworks the entire body. Perform explosive 1- and 2-arm movements and other rotational exercises simply by inserting any Olympic-size bar (not included) into the 12 pivoting sleeve at the units base. A 4 sleeve is also available to hold standard 1 bars. Portable for use in or out of the weight room; includes handle for easy transport. Solid steel. Nonskid rubber bottom. Assembly required. Black. Base: 19-1/2 L x 16 W.