Hang-A-Plan, 18" General Hanging Clamp, Silver, Holds up to 150 plans, Single Clamp The General Hanging Clamp will hold 1-150 plans and can be stored on a compatible Hang A Plan Trolley or Wall Rack Hang A Plan systems allow large amounts of plans to be well organized and easily accessed using only a minimal amount of storage space Save to up to 80% on floor space and cut filing and retrieval times by over 75% compared to flat storage system Keeps plans in original condition with no rolling, folding or adding strips or holes 18" A2 size clamp, 10 year Guarantee