ikea HELMER gridfinity 4x1 side base

This is used for ikea HELMER gridfinity stroage solution. Only need 1 side to be modified. Rest net can stay as standard.Once you placed it, the whole net won't move at all. (Since the back of the HELMERis hard to be reached, 4x4 size of gridfinity can provid the best experience. (you can store & hide some secrets at the very back)