The LMB Extension Finger Splint is Ideal for beginning boutonniere deformity. It produces extension of the proximal interphalangeal or distal interphalangeal joints of the fingers and/or thumb. It is adjustable by careful bending for less tension, and will extend the supple joint to full extension. To size: measure the volar surface distance from the MP crease to the distal finger crease. 

• Ideal for beginning boutonniere deformity
• Adjustable by careful bending for less tension
• Will extend supple joint to full extension
• Weakest spring tension: 1 lb. (373g) of force at full extension, 1-3/4 lbs. (653g) at full flexion
• Fits right or left hand
• Latex free