AliMed Dynamic Digit Extensor Tube is the better way to reduce PIP and DIP joint finger flexion contractures. A curved, banana-shaped, neoprene tube locates a 30 degrees reverse angle under the PIP joint, stimulating a spring-like mechanism. Distributes lift along the entire volar surface of the digit. This lift, combined with a constrictive factor at the distal end of the digit, eliminates the harmful pressure commonly experienced with other forms of extension splinting. Fabric interior, rubber exterior. Fights edema. Unlike traditional spring and jack-like devices, tube fits snugly around the digit, delivering warmth to help relax tight tendinous structures and remodel scar tissue. Circumferential pressure aids in restricting fluid to assist in edema reduction. Trim to length. The splint is mildly flexible, maintaining joint mobility and some functional use of the digit. Can be easily trimmed to length and contoured to fit the web space. Easy application. Fabric interior makes the tube easy to slip on and adds durability. Rubber exterior provides a grip surface to aid in application as well as a functional grip surface during daily activities. No pressure points. Tube may be worn for longer periods of time compared to other extension splints, due to its gentle force and distribution of pressure over a large area. Sizing: Approximate. Measure circumference of PIP joint. X-Small 1-3/4" to 2". Small 2" to 2-1/2". Medium 2-1/2" to 2-3/4". Medium Plus 2-3/4" to 3". Large 3" to 3-1/2"