Attributes . Chrome Plated Ram for Additional Rust Resistance, Front Wheels with Roller Bearings and Ball Bearing-Mounted Rear Caster Wheels, Handle can be Locked in Three Positions from Horizontal to Vertical and Has Independent Release Knob, Heavy Duty Hydraulic Service for Garages, Equipment Dealers, Commercial Service and More, Overload and By-Pass Safety Valves Prevent use Beyond Rated Capacity Ad Over Extension of the Ram, Uses Shop Air Supply for Lifting Assistance, Welded Hydraulic Pump and Cylinder Construction Provides Increased Strength and Leak Protection, Wiper Seals Protect Hydraulic System From Contaminants . Names