This machine is suitable for testing the bending resistance of soles and finished shoes. This machine simulates the bending angle of shoes during walking and running. After continuous reciprocating bending at a fixed frequency, time and angle, it can be used to determine whether they are degummed or cracked, which can be used as the quality assurance of shoes, and also as the bending and bending resistance test of soles It's used for determining the flexibility resistance and or indicating the cracks od shoe or shoe sole through reciprocating flexing movements under the specified angle and frequency.