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An anti-slip sucker made of silica gel is set up at the top of umbrella. It makes umbrella hang on the table more firmly as it can be changed according to the angle umbrella lies. In this way, you do not need worry that the umbrella will fall off the table. Whats more, there are different colors for you to distinguish other umbrellas.
Li Xiang, Zhang Bin, Deng Haowen, Wang Yan