29 mm Carbo single/fixed block. For 5/16'' rope. Working load: 330 lb. Sheave: Long-glass reinforced engineered nylon. Ball bearings: Engineered plastic in fitted ball races. Sheave size: 1 1/8'' (29mm). Line diameter: 5/16'' max. Cheek material finish: Long-glass reinforced engineered nylon. Shackle/strap: Stainless swivel shackle.
