Abstract: Apparatus for connecting shelving and other hanging components (hanging baskets, boxes, prongs and display holders) to a backing board. The shelves have a pre-fitted protruding aluminium extrusion piece that fits into and locks into a dovetail piece that is pre-installed into a pre-cut triangle groove in the backboard. The backing board has a number of pre-cut grooves (to suit customer requirements) running the length of the board that are filled with the dovetail extrusions. The shelves can be removed without tools, can take significant weight and cannot be accidently dislodged.