This is the most important part of the Wallflex system.

It is needed to attach all boxes, hooks and clips to the panel.

It should be printed horizontally on its side to increase stability through the arrangement of the lines.

If you need to attach heavier things, there is a double version. However, you can also just use two individual ones.

It is only recommended to use one or two double holders for assembling the individual segments. Then you can mark out the hole pattern more easily.