FallTech 82706TB3 DuraTech 6' Compact Web SRL - Twin 6' Compact Web SRD, Carabiner with Alignment Clip, and Steel Rebar Hook leg-end Connectors, Twin 6', Blue/Black Smallest SRD on the market with internal inertial brake mechanism^No Shock-Pack to get in your way^Cycle-tested Abrasion-resistant webbing  outlasts the competition^Glass-reinforced Polycarbonate housing - More durable than typical plastic housings