Aluminium extrusion post used with G18Cap for framing 18mm MDF. Recommended to be used with 18mm Assembly Clips (pinned to panels end to lock post into place). G18 Corners - Satin Finish are also available (sold separately) Use G18 Hinge and G18 3-Way Hinge to hold multiple panels in line. Part of Plankwall's Shopfitting & Joinery accessories and components range.