Right or left hand. Moisture releasing materials. Helps relieve sore, aching or weak thumbs. Helps relieve thumb joint pain associated with arthritis. Nascar officially licensed. Live more. Helps stabilize the lower thumb joints. Allows free movement of remaining fingers. Patented design adjusts for ideal fit. Easy to put on and take off. Velcro brand fasteners for custom fit. Two stays for stability. Soft, breathable, durable, latex free materials. Adjustable wrist strap for added support. Size: For right or left hand, measure around the thumb knuckle, and then the wrist. Small/Medium: Around Thumb: 2.0 - 2.5 in. Around Wrist: 5.0 - 7.5 in. When to Use: This Futuro Deluxe Thumb Stabilizer provides comfortable protection and firm support for weak, aching or sore thumbs. It is also ideal for those experiencing arthritic symptoms or degenerative joint disease of the thumb. Wear all day or during activities which lead to discomfort. Our expert panel of engineers and medical professionals brings innovative technology to every product we make. Futuro guarantees its products to be of the highest quality. For our complete line of products to move you forward visit us online www.Futuro.com. CE listed. www.futuro.com. Package is recyclable. Made in US with globally sourced materials.