Extra long length neoprene sleeve designed to offer compression and support to an injured or arthritic elbow joint. While this elbow support does not offer the bracing capabilities of a splint, it can provide heat and comfort for a sore elbow. Please refer to our size guide for sizing information Size Elbow Circumference (inches) Elbow Circumference (cm) Small 7 - 10\" 17 - 25cm Medium 10 - 12\" 25 - 30cm Large 12 - 13\" 30 - 33cm Extra Large 13 - 15\" 33 - 38cm