Hoister 4 Point Lift System 15 - 60lb/12'Designed for one-person operation. Raise and lower with a single control rope. Patented design lifts and lowers loads evenly, regardless of weight distribution. Self-locking safety cleat grips instantly if the rope is accidentally released. Stainless steel hardware, double-braid rope for strength, durability, long life. Everything is included for easy installation. Specifications:Ceiling height: 3.7m / 12ftMinimum working load: 7kg / 15lbMaximum working load: 27kg / 60lbMechanical Advantage: 3:1