Trailer Jack, Double Tire, Load Capacity 1,500 LBS, 140.9 lbs (680 kg), Extendable Type, Double Tires for Peace of Mind! For transporting boats and other items: This trailer jack is compatible with regular trailers up to 1500 LBS (678 kg) load capacity for boats, jet skis, camping trailers, etc. The double tire design provides stability and peace of mind. It also has a telescopic type that is convenient for driving. It is a replacement for rusty steering wheels that have no turn, or tire adhesion. [Product Details] Safety Load: 1,500LBS Double Wheel Trailer Jack; Load Capacity: 1,500 lbs (680 kg); Tire Outer Diameter: Approx. 0.5 inches (14.5 mm); Wheels are plastic, Mounting Size: Frame Length: 2.0 inches (50 mm), 75 mm; Total Length: Approx. 37.4 inches (95 cm); Product Weight: Approx. 1.3 lbs (6 kg) *Imported