This trailer has only been used on one trip of just over 1000 miles and is all but brand new. This Wedge 4-car trailer is equipped with tandem dual 10K axles. Kaufman Wedge car trailers make up about 2/3rds of the 3 and 4 car trailers on US highways. This 4-car trailer is constructed with a lightweight, hi-tensile tubing frame and lightweight, ridged, mesh runners which reduce weight and wind drag, while giving good loading traction in inclement weather. Flipouts - front and rear - give 56′ of usable load area. Frame upgrades are included over the 3-car model to carry the extra load of a fourth vehicle. Tandem dual 10K oil bath axles with 16″ RADIAL tires add running gear durability. We recommend you purchase the long-life, US made premium Cooper Discoverer tire upgrade on over the road car trailers. These premium Cooper tires will typically run double the miles, over the stock tires, before the tread is worn out. Tying down your load is quick and easy with the tie-down ratchets and wheel straps that are included. These durable 4-car car trailers work well with today's 1-ton pickups