RESCUE TECH LADDER HOOK EXTENSION The Ladder Hook Extension Strap allows the rescuer to attach themselves to a ladder rung. The overall length of 19" provides the perfect length to five the rescuer both comfort and safety. Available with either screwgate or autolocking Ladder Hook. Fire resistant version is manufactured of Kevlar webbing and thread. Forged steel snap attaches the Ladder Hook Extension to the "D" ring of rescue harnesses. Weight: 34 oz. Strength: 6,000 lbf.