This shelving was exactly what I wanted.  It's fairly lightweight.  I stacked towels and books and lightweight containers on it.  The assembly was easy (really!).  It comes with both casters and feet for the bottom; if you use the casters, two of them lock to help the shelf stay in place during daily use.  Then can roll it out to clean under, behind, whatever  The bars of the shelves are close enough together to handle small items, for instance a spray can.  It's a well-designed, easy-to-assemble, attractive lightweight shelving unit.