It's time to challenge yourself with The Clock. Practice special delivery, pinch, gaston movements and more! The Clock can be mounted on either 1.25" (1.66" OD) or 1.5" (1.90" OD) pipe, and positioned to swing forwards or sideways. Includes two 1.5" cliffhangers and two 2" cliffhangers that can be installed on either side of The Clock in many configurations. The Clock has a 28" Diameter.