Lightweight night splint keeps elbow extended to prevent involuntary movement. Ideal for people with cubital tunnel syndrome, this breathable, padded splint contains rigid metal that can be removed for washing. Personalize fit with adjustable hook-and-loop straps. Nylon/Polyester/Velcro. Made in the USA. For size, measure around bend of elbow. S (9"-11"), M (11"-13"), L (13"-15"), XL (15"-17").