The present invention is related to peptides, which are suitable for use as cell-penetrating peptides, variants thereof andor complexes, fusion molecules andor conjugates comprising same, use thereof for manufacture of compositions for diagnosing, treating andor preventing of medical conditions. A first plurality of first tier stacks are mounted to the substrate, wherein the substrate has one or more contact pads corresponding to each of the first tier stacks and has one or more probing pads associated with each of the first tier stacks. Disclosed anti-ram systems also comprise a plurality of bollard sections and one or more connectors for interconnecting two or more of the bollard sections, and may also include an anchor or anchor system engaging at least each end of a bollard section not connected to another bollard section.