ZENY Electric Power Tongue Jack 12V 3500 lb Capacity RV Boat Jet Ski Solid A-Frame Trailer Camper Well Built, Durable Frame -Solid cast steel construction with rust resistant, environmental-friendly varnished, strong and durable for years of normal use Generous Capacity - This tongue jack allows you lift your trailer's tongue to either unload or load the trailer within the 3,500lb weight limit Versatile Funtional Utilities - Widely used for boats, RV's, campers or any trailer, fits standard A-frame trailer tongues Assembly Easily - Designed to install quickly and easily. Powered by 12v outlet. Feature with water seal switch, dual LED side light for use at night and manual crank for emergency use in case your battery goes dead, providing excellent illumination for easy night time hookup. The tongue jack kit is adjustable with food pad,Features easy to operate switch for lifting up to 18" More Useful Details - Overall dimensions: 6.5"(L) x 6.5"(W) x 31.5(H) ,Fits 2 & 2.25" standard trailer tongue mounting holes