The Sledbarrow is an innovative, 3-in-1 conditioning system and sports training tool that provides a true total-body workout. The Drive Sled, Wheelbarrow, and Drag Sled are developed to give trainers new options and athletes an edge over their opponents. Its patent pending design creates a wide range of new conditioning possibilities. This optional Ski Attachment Kit allows you to drag or push the sled on any hard surface without wearing out the underside. The kitcomes in a set of two.