The GESTER GT-KB06 EN Sole Flexing Tester (Bennewart Flex Tester) is a high-precision lab apparatus designed to measure the flexing resistance and cut growth/crack initiation of shoe soles under continuous cyclic bending. Engineered for compliance with international safety and quality standards including ISO 20344, ISO 17707, DIN 53543, SATRA TM161, it offers multi-station testing (3 or 6 test positions) with touch-screen controls, precise 90° bending angles, and adjustable flex speeds (125–150 cpm). Ideal for shoe manufacturers, quality control labs, and third-party testing agencies evaluating safety footwear and athletic shoe durability.