Includes a central keyed locking mechanism for all drawers of the same cabinet. Includes partitions and dividers in the drawers. Patented partitioning system. 100% drawer extension. The Rousseau drawer rolling mechanism is covered by a lifetime warranty. The unique shape of the R drawer is a Rousseau Metal inc. trademark. Heavy-duty construction. Variety of drawer accessories available: partitions, plastic bins, hanging files bars, etc. All accessories and compartments are compatible with each other and can be easily rearranged according to your needs. For personalized configuration, contact us!