Twin Sheave Block And Tackle 7500lb Pulley System 100ft 1/2'double Braid Rope Large Breaking Strength Sturdy Material Double Pulleys Double Braid Rope Easy Operation Widely Used Breaking Length: 7700 lbs / 35 kn,Packing Weight: 10 lbs / 4.5 kg,Rope diameter: 1/2 in / 12 mm,Material: Forged Aluminum, Polyester,Rope Length: 100' / 30 m