On Top Safety’s All-In-One system consists of a 4-man safety tie-off cart with built-in shock packs and a complete fall protection guardrail system that includes 400 linear feet of cables. The entire guardrail system fits into the safety cart’s storage, increasing mobility at any construction site. With both a safety tie-off cart and guardrail system, workers are secured to OSHA standards for any application of roof work. This is the only All-In-One system on the market containing a safety tie-off cart, built-in shock packs and a self-contained guardrail system.