Built to withstand the rigours of every day shop use, the PRS-3.3 is the stand of choice for professional mechanics around the worldStand height and clamp position are firmly secured in place using Park Tools proven lock block system,Built from heavy-gauge oversized steel tubing, then chrome plated and powder coated for years of carefree use,The PRS-3.3-2 features our 100-3D Micro-Adjust Clamp, with narrow clamping jaws and a dual-stage cam-actuated system that quickly adjusts to accommodate nearly any seat tube or frame size,For a complete system, please order either QK130 base or QKFP2 to mount the stand directly to the floor,Features include:Maximum weight capacity: 120lbs. (54kg),Clamp capacity: 0.875 to 3 (22-76mm) diameter tubes, including aero tubes,Clamp jaws are nominally 2.75 (70mm) wide,Clamp height: adjustable from 50 to 62 (128-158cm),Includes #105 Cast Aluminium Work Tray and RPP-1 Repair Stand Post Protector.