There are 2 models of this bending sensor, flex4.5" and flex2.2", the slightly longer one is flex4.5" and the slightly shorter one is flex2.2". The actual thing is as shown in the picture.
The manipulator picture in the product link is used as a reference case, using flex4.5". We hope that buyers will pay attention to the product size. If you have any questions, please contact us in time.SKU1-flex2.2:73.66mmSKU2-flex4.5:113.24mmWhen the metal side of the sensor bends outward, the sensor's resistance changes, allowing the bend to be detected.