Safco Boltless Steel and Particleboard Shelving Reviewhttp://tinyurl.com/lkoffhm Safco Boltless Steel and Particleboard Shelving Boltless steel shelving unitSturdy steel constructionFlexible design allows the unit to be set up as a 5 shelf 72 high shelving unit, or a 36 high workbenchAdjust the shelves in 1 incrementsAssembles with no tools needed