20-tub mobile storage unit without bins provides tons of storage space for individual students or classroom supplies. Laminate is durable and features an easy-to-clean surface. MAXBrackets allow the art center to be moved effortlessly from room to room without causing stress on the wheels and brackets. Wheels are made of hard rubber and won't leave black marks on your floor. TRUEdge is permanently thermo-fused to the edges to prevent chipping. Standard Write-n-Wipe recessed backs can be easily wiped clean.