These cabinets can be used for hanging on a wall or for inserting on a turntable or a free-standing rack. 102520:Comes with 48x150.01 BL drawers (35 x 64 x 125mm) plus and earth lead. 102537:Comes with 24 x 150.02 BL drawers (57 x 87 x135mm) plus an earth lead.