Guardrail bolong / pager bolong uga disebut pager, pager lan pigura bolong. Guardrail bolong digunakake kanggo pangayoman guardrail saka dalan, railways, bandara, panggonan omah, bandar lan dermaga, Kebon, breeding, peternakan, etc. Nduweni ciri saka anti-karat, anti-tuwa, resistance srengenge lan weather resistance. Wangun anti-karat permukaan guardrail kalebu electroplating, plating panas, uyuh plastik lan plastik dipping.