This set of two perforated plates is 610 mm wide and 495 mm high when both plates are next to another the wall is made from solid plastic and is delivered complete with 18 tool hooks the wedge connectors enable the wall to be extended vertically and horizontally technical details middle of hole to middle of hole 15 mm hole diameter 5 mm size of keyhole length 17 mm diameter at top 9 mm bottom 4 mm the perforated plates are black please note no tools are included in th