1.New nanotechnology PVC dip: environmental protection, anti slip, anti burst, soft feel, more tightly wrapped, bright color ,long-term using. 2.Coat hook: high speed steel adopts multi-layer chrome plating technology, with high rust proof hardness and strong elasticity, 3.Thickened frame body, hook design, 5cm arc width, convenient for water flow out of the shoes, effectively preventing slipping 4.Hanging design: circle design in the middle, maximum drying space saving, more functions waiting for you to explore