The Safewaze 019-5058 6 ft dual leg Web self retracting lifeline with steel rebar hooks combines lightweight design with durability. These units come with our 9012 behind the Web bracket and have rotating and pivoting attachment points for improved mobility, making it the ideal personal dual leg unit. Material: Durable nylon housing 0.78 in 20 mm Ultrahigh Molecular Weight webbing, 1.75 in Forged Steel rebar hooks #9012 Behind-the-web Bracket