Aluminum Bar, Neoprene, NylonBREATHABLE MATERIAL - The main part is manufactured by composite material, Designed with built-in aluminum bar, extremely breathable makes it extremely comfortable to wear.This Breathable, Lightweight Finger Brace is Perfect for All Day and Night Time Wear. Stays in Place Protects All Types of Finger InjuriesFINGER PROTECTION - Finger splint can use Index, Middle, Ring, Pinky Fingers, it can more work for Arthritis Pain, Sport Injuries and can compress support your sore fingers or thumbs to soothe pain reduce finger or joint swelling fast.FAST BROKEN FINGER RECOVERY - Great or Broken or Fractured Fingers, Finger Tendon Strains or Sprains. This Soft Padded Finger Support is What Your Finger Needs. This Finger Immobilizer Stops Finger Joints for Bending and Keeps Fingers StraightFIT FOR ALL PEOPLE - 1Pcs Blue finger splint + Use Guide Book.Works for men, women and kids. Helps effectively on finger rehabilitation.Accommodating the circumference of finger or thumb up to 3