OTC's 1806A 3,900 LB Capacity Load-Rotor Sling is designed for use with a crane or hoist (not included). Engine, transmission, or other component is tilted or leveled by turning sling's 5/8 inch hex drive end with a common speed handle and socket (not included). Makes engine removal and installation a snap, even in close quarters. Sling has a 65-3/4 inch long, 5/16 inch chain and hook assembly with forged swiveling hook on each end. Sling comes complete with a pair of special mounting brackets. Rugged, high quality materials ensure high strength and a long service life.