Mobile Vertical File is built to withstand the rigors of a construction environment yet is equally at home in design offices. Steel construction includes four ball-bearing swivel casters (two locking) for glide mobility. Adjust your organizer to suit your storage. The width of the Mobile Vertical File is easily modified to fit 24" to 36". Vertical file holds up to 12 hanging clamps (sold separately) that simply drop in and lift out.