These easy-to-use vertical filing systems provide ideal space-saving storage for blueprints, drawings, plans and more. Vertical file racks allow secure blueprint file hanging using blueprint clamps. Each binder clamp holds up to 100 sheets. Frame is made of durable tubular steel with tan powder coat finish. Steel pivot hangers allow easy removal of clamps (sold separately). All blueprint file racks accept up to 12 clamps and includes 4" labels for easy identification. Choose from either Wall Mount or Mobile Rack styles. Mobile Storage Rack has four 3" swivel casters, 2 rear locking. Accepts print sizes up to 60"L x 42"W. Clamps are sold separately in cartons of 6.