Built-in aluminum bracket: The metal rod and the special durable aluminum material can effectively fix the finger in place, to prevent knuckle bending, promote the healing process, and reduce pain and discomfort.< /p> Adjustable magic band bandage: one size fits all fingers, including index, middle, ring, little finger or trigger thumb left and right hands. < p>Easy to use: the main part is made of composite material, extremely breathable makes it extremely comfortable to wear, compact and lightweight, convenient to carry. Advantage: It prevents your fingers from getting hurt by providing support when doing sports. Perfect for people whose finger can sprain easily. Widely used: for stiff fingers, osteoarthritis, finger pain, straightening drummer fingers, broken finger repair tendon and fracture, sprains and displacement of the joint.