The PRO10 is in our STRONGER category because it is made from 1/8″ UHMW, and can handle nearly anything you want to haul over grass, roots, dirt, sand, mud, snow and ice. We purposely melted several friction holes in our original prototype, and then used it for weeks worth of hurricane cleanup. The melt points never tore, and we still use this prototype years later for logs, yard debris, tree trunks and other bulky loads.