In terms of detailing, it is sewn with waterproof thread, the webbing is reinforced with stitching at the copper loop where the webbing hits the copper loop, and the webbing loop for tying the wind rope is designed in the shape of a folded funnel, which makes it easy to put on the rope. The bottom of the pole bag is reinforced to improve the durability of the tarp. In addition, the projection area of the tarp can be adjusted by itself according to the direction of daylight, and the maximum projection shade area can be achieved by changing the support method, which brings a better using experience for the users.