【Heavy Duty and Durable】High strength carbon steel line cable, braided, anti twist. Cable length of 39ft, diameter is 1/6". Rugged steel shell and mounting hanging clamp brackets, with reliable hardware, makes our mini electric wire host strong and durable enough to withstand heavy use. 【Sheaved Pulley Lift Hook for Dual Line Operation】2 heavy duty weighted lift hook, maximum load capacity ups to 660lbs each, 1320lbs total. Lift speed of 26ft per minute of single hook, 13ft per minute of double. Max lift height of 39ft of single, 20ft of double hooks. 【High Quality Cooper Motor】ETL Approved grade, features good heat dissipation ability. It provides strong power with relative low electricity consumption. 【Built-in Safety Braking Mechanism】With easy operate remote control panel, fully automatic hoist, requires no hand cranking. Item features automatic brake function with build-in safety braking mechanism and thermal protection device to ensure safety. 【Mounting Hanging Clamp Brackets Included】It comes with all necessary mountings. Simply assembled then ready to use. Compact construction, lightweight, easy operation, perfect for lifting small engines, transmissions, large shop tools, or building supplies in factories, warehouses and cargo berth.