Knuckle bender coil spring


  • 10 pieces.
  • Designed to assist the intrinsic muscle weakness, e.g. with ulnar nerve palsy.
  • The spring can also be turned upside down to increase the spring power.
  • Torque at full finger extension: ca. 1000 g.cm
  • Gauge 1 mm – 1/24″ – Coil diameter 4 mm – 1/6″

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