Stabilizes the proximal phalanx and provides counterforce at the IP joint for improved pinch. Made of ultra-thin polypropylene. Latex free. Ideal for treating Type I and Type III thumb deformities. Applies a 3-point pressure system that stabilizes the MP joint, allowing the hyperextended IP joint to flex. Increases pinch strength and decreases pain at the MP joint. Thin polypropylene can be trimmed with scissors. To size, measure length of thumb from IP joint to CMC joint.