Keep important blueprints and large documents from wrinkling or bending in Safco’s Mobile Vertical File. The steel frame stands up to heavy use and abuse and the powder coat finish won’t scratch or dent. Four ball-bearing swivel casters (two locking) let you roll the file system around your office with ease. Holds up to 12 hanging clamps that drop in and lift out; clamps are not included. The width adjusts to fit 24-inch to 36-inch hanging clamps.