-Compact, light yet durable -Double-pawl brake system designed for safety and reliability -Heat treated steel plates, gears and shafts for enhanced strength; upper, lower hooks with forged steel safety latches; tensile Alloy Steel Chain -Free-wheeling mechanism for quick chain adjustments -360 degree rotating hadnle of ease of use in confined space -Safety factor 4:1 -Fatigue tested at 1.5 times of working load limit to 2000 cycles -Standard: EN 13157