What we have is a new innovative exterior car sun shade that can open and fold in 30 seconds. You can just pull one corner of the tent to get it fully open. the model can be easily positioned on the top of a car. It measures 4m x 2.1m or 0.85m when fold and features a strengthened fiber glass frame, imported pc joint parts, coated high-density 210d oxford nylon cloth and double wind-proof insurance design.Besides protecting against sunlight and dust, the model also can understands up to 7 grade heavy wind. Most important, the in-car temperature under the car umbrella is at least 30 degrees lower than exposed in the sun. Lastly, it is designed by ourselves with patents both in domestic and foreign countries.