Over-the-thumb design supports the wrist area. Provides compression and helps reduce the chance of re-injury (BD Cares: This is not a substitute for medical advice. Always consult a medical professional for advice about treatment of injuries or irritation). Fits left or right. 1. Over-the-thumb design supports the wrist area. 2. Heat retention helps improve circulation and promote healing. 3. Adjustable for different sizes. 4. Comfortable support and easy to use during activity. The ACE Wrist Support can be used for such injuries as: muscle pain; general wrist pain; swelling. Protection Levels: Advanced - Designed to provide moderate support during activities and should be worn as needed. Made in China.