E-Z Clamps for car cover (set of 5 pcs) (4 inches) Withstand wind speed of up to 60mph Easier to install on car cover than other strapping systems such as Gust Guard Installation takes less than one minute (To see our Youtube video about E-Z Clamps, please go to this link http://youtu.be/Xojdv-qGzZY) Made of heavy-duty nylon/fiberglass composite material (other similar products are made of cheap plastic and easy to break) Grip firmly on anything (car covers, patio furniture covers, picnic tablecloths, camping items, beach towels, woodworking projects, etc...)