ADVANTUS CORPORATION-FILE,MOBILE,W/SHELF,BK. Mobile File Cart w/Sliding Baskets, 15w x 12-7/8d x 20-7/8h, Black. Easy access suspension file cart fits under most worksurfaces. Sturdy all-steel frame with built-in hanging rails hold letter size hanging folders (not Included). Two pullout wire-grid baskets store supplies and keeps things at your fingertips. Color(s): Black; Width: 15 in; Depth: 12 7/8 in; Height: 20 7/8 in.