Conceived out of real world experience by a truck driver and an industrial crane operator, you can use the EZ Winder™ to motorize your existing landing gear! This product is a fully contained, self-powered system that includes a battery pack. EZ Winder™ fits virtually all existing landing gear.The EZ Winder makes dropping and picking up semi-trailers hassle free for drivers, and saves cost for owners.Adopt the EZ Winder Way… No Strain… No Pain… No Crank! -Totally Self-Contained System with Battery Pack -Effortless Up… Effortless Down… -Works in High & Low Gear -Use with Existing Landing Gear -Weatherproof -Quick Easy Install (approx one hour) -Reduces Driver Fatigue & Injury -DOT Regulated Load Capacity(up to 30 tons)EZ Winder LLC, a subsidiary of Ridgeback Corporation, in combination with its sister company, Asia Sourcing Corporation, has in excess of 50 years in sourcing and manufacturing OEM components in aluminum, steel, and plastic. After 3 years of development, EZ Winder was introduced to the trucking industry.