Recommendation & Support - Applicable age: Upper 12 years. We recommend a short-time trial use of no more than 15 minutes before long-time wear. If you have any questions, please contact us, We’ll respond within 24 hours. Easy to wear and adjust - The thumb band was designed to fit for both right and left hand. With two hook and loop fasteners you can rest assured that the brace will fit perfectly for better support and comfort. Measure your wrist circumference and choose the correct size. Comfortable & Breathable Materials - The thumb splint brace is made of polyester fabric which is skin-friendly, lightweight, comfortable & Breathable. Keeps your injured thumb dry and speeds up recovery. Two lined supports - It comes with two different lined supports, One is Solid aluminum bar especially for fixing the seriously injured thumb, another is elastic spring lined support for slightly injured situation. Thumb & Wrist Pain Relief - Fasola Thumb brace could support your weak or injured thumb / wrist stably and continually, Provides relief from Carpel Tunnel Syndrome, aching, sore, swelling caused by arthritis, tendinitis, sprained hand, ligament tears, repetitive stress injury, etc.