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.

Length and width in mm. The distance is measured from the distal flexor crease in the volar region to the flexor crease on the DIP joint of the finger. The finger should be extended during the measurement.