It is used to test the immersion resistance and water bending resistance of shoes. The test method is used to test the immersion resistance and water bending resistance of shoes at different times. The test method is divided into timed immersion and water zigzag. The immersion time or the number of twists and turns can be set, and when the set time or number of turns is reached, it will automatically notify and stop. There is slight water seepage in the shoes, which is an automatic warning prompt.