Safco Products 4100CH GridWorks Compact System, Charcoal GridWorks panel literature organizer fits panels up to 2 5/8" thick Height adjusts in 4 1/2" increments (3 levels), includes 38"W x 15"H grid wall Two letter trays hold up to 35 lbs., 2 slot sorter holds up to 10 lbs., binder bin holds up to 40 lbs., 2' shelf holds up to 40 lbs. Continuous-loop design, all components lock into place on users gridwall Welded steel construction with hardened epoxy finish