Adjustable height shelf fits any of the two-foot wide Mayline Support System units. Shelf has charcoal gray painted steel brackets that hook onto the support system"s frame at two-inch increments. Shelf has ice gray laminate surface and can hold up to 250 pounds. Graphite/Charcoal Paint, Ice Gray Tf Laminate, Ice Gray T-mold/PVC . 24 in. W x 20 in. D (15 lbs.)