Sturdy 200 lb. test corrugated divider system includes plastic channels and labels. Constructed of 58 thermal fused melamine laminated particle board. For letter size materials. Compartment dimensions 9w x 11 78d x 2 58h. Overall 29w x 11 78d x 12 1516h. Number of compartments 12. Global Product Type Literature Sorters Literature Sorter Type NA Number of Compartments 12 Compartment Size NA.