The Polar HD 1500 Utility Trailer is a true workhorse. This Heavy-Duty trailer has an extra-thick bed, walls and gunnels that stand up to rock, firewood, gear, and game like no other. It's built with rugged, durable Tubular Frame Technology with a powder coat finish to hold up to the elements. This model features Polar's original Tandem Walking Arm that's perfect for hauling heavy loads easily over unstable terrain. The walking arm lets the wheels "crawl" over obstacles keeping the load stable.