Working Load Limit: 1.5 Tons (3,300 lbs)Material: Forged Alloy Steel (Quenched and Tempered) Design/Safety Factor: 5:1 ratio Crosby Frame Size Code: F Throat Opening: 0.91 inches Inside Eye Diameter: 0.91 inches Overall Width: 3.11 inches Reach / Length (B-B): 3.81 inches Approximate Weight: 0.89 to 0.91 lbs