Galvanized, forged, single 4" diameter sheave pulley. For use with manilla or synthetic rope up to 5/8" diameter. 1" wide sheave, 1" eye opening. One ton working load limit. ITEM NO:19961429 MODEL:HB4 SIZE:1" UPC:647724-013628 WORKING LOAD LIMIT:1 Ton UM:EA PK:1