Give your storage setup a boost with this multi-purpose polypropylene lid, made to fit our A4 file boxes. Sturdy enough to support stacking up to two tiers and a total weight of 5 kg, it helps you take full advantage of vertical space. The lid also doubles as a base for a mobile storage unit, simply attach compatible wheels to the underside to roll your boxes wherever they're needed. Whether you're building a neat stack or on the move, this white grey lid adds a neat, practical touch to any workspace or home.

Wheels are sold separately here.