PCC1120 Features: * Rope Size: 5/16 in * Working Load Limit: 140 lb * No. of Wheels: 1 * Mounting: Swivel Eye * Body Material: Die-Cast Zinc * Type: Swiveled Closed Cable Block * Wt.: 0.14 lb * Price is for 10 Eachs Assembly Instructions: * Assemblies of the pullies should be rated according to the working load limit of the weakest component within the assembly