Mandrel Slot Holds up to 2" Webbing May be Bolted or Welded Above or Below the Trailer Deck 3,333 lb. Working Load Limit for Tire Bonnets or Wheel Straps Commonly Found on Tow Dollies or Car Transport Trailers Also an Excellent Tie Down for Ladders on Utility Truck Racks Spring Loaded Handle Engages Mandrel Gears on Both Sides Hex-Head is Easily Tightened or Loosened with Adjustable Wrench or Socket Zinc Plated Components with Black Powder-Coated Frame A Heavy Duty Alternative to a Hand Ratchet When a Fixed Location is Desired