Park Tool Home Mechanic Bench Mount Repair Stand - PCS-12 The distance from the center of the clamp to the center of the mount is approximately 11.5" (29cm) The height from bench to to center of the clamp axis is approximately 9.75" (24.8cm) Quick adjusting cam-type clamp fits tubes up to 76mm and rotates 360 degrees for easy access to any part of bike The clamp jaws are nominally 3.5 inches (9cm) wide; Fully adjustable clamping pressure to prevent damage to thin walled tubes Mounts to any flat surface (mounting bolts not included)