the warn 38330 plow skids are designed to work with warn standard plow blades 37574, 38732, and 38121. They’re used to assist prevent put on and tear to your plow blade. The replacement skids are zinc completed to withstand rust and put on. The plow skid can also help in plowing material off of gravel surfaces by way of floating the brink of the blade just above the gravel. Designed for clean set up .