* Super heavy duty blocks * Galvanized for corrosion resistance * Break-away shackle design allows fast and easy placement and removal of cable or rope * These blocks are rated and permanently embossed with sheave diameter and working load limit ITEM NO:19961915 MODEL:YB3 SIZE:1/4" UPC:647724-009676 WORKING LOAD LIMIT:1.5 Ton VL:B UM:EA PK:1