Aluminum Bar, Neoprene, Nylon High-quality and breathable material - The main part is made of composite material with a built-in aluminum bar, offering excellent breathability and comfort for all-day and nighttime wear. This breathable, lightweight finger brace helps protect various types of finger injuries and stays securely in place. Finger protection - The finger splint fits the index, middle, ring, and pinky fingers. It provides support for arthritis pain, sports injuries, and helps compress and support sore fingers or thumbs to relieve pain and reduce swelling. Fast finger recovery - Ideal for broken or fractured fingers, tendon strains, or sprains. This soft padded finger support helps immobilize finger joints, prevent bending, and keep fingers properly aligned. Fit for all - Includes 1 blue finger splint and a user guide. Suitable for men, women, and children. Supports effective finger rehabilitation. Adjustable to fit finger or thumb circumferences up to 3 inches.