Provides lightweight, soothing support. Comfortable latex free elastic. Contoured visco elastic insert provides: consistent compression; massages muscles and tendons while supporting the elbow. Excellent neoprene alternative. Fits either elbow. Scott Certified Professional offers a wide range of quality products designed to help you stay active. Supports that help reduce pain and discomforts associated with injuries, accidents, arthritis, and repetitive stressors to tendons and muscles. Or use as a preventative reminder! Affordable, long-wearing firm yet comfortable support. Lightweight, go anywhere. Medium fits elbow circumference 10 - 12 inch.