Scope of Application - The finger splint is designed to straighten and immobilize the full knuckles while protecting the fingers and hand. Ideal for trigger finger, mallet finger, broken or fractured fingers, sprained knuckles, rheumatoid arthritis, tendonitis, post-stroke, finger curls, post-operative care, and finger pain relief. Built-in Aluminum Support - A metal rod and special durable aluminum material can effectively immobilize the finger to prevent the finger joint from bending, promoting healing and reducing pain and discomfort. Adjustable and Easy to Use - One size fits all fingers, including the index, middle, ring, and little fingers, or trigger thumbs, for both left and right hands. Better Recovery - Can be worn at night while sleeping or during the day while typing or driving, as well as for conservative treatment to prevent finger surgery or provide post-operative pain relief. Lightweight and Versatile Design - The fingertips are slightly curved. Breathable neoprene increases blood circulation in the surrounding area and prevents excessive sweating.