Aluminum Bar, Neoprene, Nylon HIGH-QUALITY & BREATHABLE MATERIAL - The main part is manufactured by composite material, designed with a built-in aluminum bar, extremely breathable to ensure comfort during wear. This breathable, lightweight finger brace is suitable for all-day and nighttime use. Provides support and protection for various finger injuries. FINGER PROTECTION - The finger splint can be used on the index, middle, ring, and pinky fingers. Offers support for arthritis pain, sports injuries, and helps compress and stabilize sore fingers or thumbs to relieve pain and reduce swelling. FAST RECOVERY SUPPORT - Ideal for broken or fractured fingers, tendon strains, or sprains. This soft padded finger support helps immobilize finger joints, preventing bending and keeping fingers properly aligned. FIT FOR VARIOUS USERS - Includes 1 blue finger splint and a user guide. Suitable for men, women, and children. Supports effective finger rehabilitation. Fits fingers or thumbs with a circumference up to 3 inches.