Telescopic Spreader Beam with a WLL of 70,000 LB. Maximum center to center extension of 240 inches with a minimum center to center extension of 156 inches and a 6 inch incremental adjustment points. Proof Tested to 125% of the working load limit (87,500 LB). Designed and manufactured to meet or exceed ASME B30.20 and BTH-1, design category B, service class 0.