Product descriptions from the supplier SATRA TM92 Standard Compliance: Designed according to SATRA TM92 for measuring the flex resistance of all kinds of shoes, providing internationally recognized test conditions for footwear fatigue durability evaluation. Four Station Simultaneous Testing: Supports 4 stations so that 4 specimens can be tested at the same time, improving inspection efficiency for footwear factories and testing laboratories. Adjustable Bending Angle and Speed