This spring provides a high extension force. Ideal for patients that needs to regain the last degrees of PIP-extension. The force in the spring can be adjusted by carefully pressing the pads together. The pressure is distributed by the dorsal pad. The lower pad provides a slight extension of the MCP-joint. The force over the joint is approx. 3,4 N in 15 degrees of flexion.Indications: Flexion contractures with limtations in ROM and increased joint tightness.Length in cm. The measurement is taken from the distal crease in the palm to the crease of the DIP joint. The finger should be extended during the measurement.