Made from a durable lightweight fabric for breathability and patient comfort, the ComfortFORM Boxer's Splint helps to eliminate the need for ulnar gutter casting or splinting. Malleable ulnar stay creates a dorsal block that maintains the 4th & 5th phalange in full flexion following injury. Ideal for Boxer's Fractures, flexor tendon and/or digital nerve damage to the 4th & 5th metacarpal phalange.Features: Designed to eliminate the need for ulnar gutter casting or splinting The preformed palmer stay helps provide correct fit and proper support Indications include Boxer’s Fractures, flexor tendon and/or digital nerve damage to the 4th & 5th metacarpal phalange Aluminum Stay Ordering Information: Measurement is taken at wrist circumference Length with MP Block Wrist measurement circumference: PART NUMBER DESCRIPTION MEASUREMENT LENGTH SIZE 79-87452 Right ≤ 5.5" 8.5" X-Small 79-87462 Left ≤ 5.5" 8.5" X-Small 79-87453 Right 5.5" - 6.5" 8.5" Small 79-87463 Left 5.5" - 6.5" 8.5" Small 79-87455 Right 6.5" - 7.5" 8.5" Medium 79-87465 Left 6.5" - 7.5" 8.5" Medium 79-87457 Right 7.5" - 8.5" 8.5" Large 79-87467 Left 7.5" - 8.5" 8.5" Large 79-87458 Right ≥ 8.5" 8.5" X-Large 79-87468 Left ≥ 8.5" 8.5" X-Large