(50 Mix Pack) Heavy Duty Natural Rubber tarp straps with S hooks attached. Pack Includes (10) 9", (20) 15", & (20) 21". We have shipped thousands of these same Professional Grade Heavy Duty tarp straps to Truck Stops and Trucking companies all over the United States for many years. They are made from natural rubber not synthetics so your getting the best tarp straps available. Great for truck tarps, tire chains, boat covers, farms, canopies and any other general application where you need a Heavy Duty strap.