Working Load Limit (WLL): 4,000 lbs. (2 tons / 1.81 metric tonnes). Material Construction: Forged carbon steel that has been quenched and tempered. Design Factor: 4:1 minimum ultimate load capacity. Trade Size: Engineered for use with 3/8-inch carbon steel chain. Physical Weight: 1.10 lbs. per unit. Dimensions: Features an overall length of 4.89 inches, a width of 3.63 inches, and an inner eye diameter of 0.72 inches.