Stack-on storage for HON 38000 Series attaches to work surface through wire management grommets. Each piece features cable management ports and tracks that run through hidden channels for a neat, organized work environment. Core removable lock located is located on the underside of stack-on shelf. Furniture is equipped with HON "One Key" interchangeable core removable locks, and keyed alike cores must be ordered separately. Multimedia organizer insert is available to store work in process, letterheads, envelopes, CDs and supplies. Tackboards feature painted steel backs. Sturdy tubular mounting rack has been engineered to stay fastened to the beam. Modular components free up work space and provide orderly storage well within reach. Stack-onstorage can be arranged and rearranged for changing workflow.