Features: Aluminum plate support design provides excellent elbow stability, helping to alleviate discomfort during exercise or daily activities. Suitable for people who need to use computers for a long time or engaged in physical exercise, ensuring that the arms maintain the correct in various movements. Quality fabric with excellent breathability, effectively reducing the feeling of stuffiness when wearing. The elbow guard design is light in weight and easy to carry around, whether it's commuting, traveling, or outdoor activities, it can be easily placed in a bag without adding any extra burden. Flexible strap design allows users to freely adjust the tightness according to their needs, ensuring that people of different body types can receive the best support effect. Quality ensuring long-term use without deformation or damage, providing continuous elbow protections. Specifications: Fabric: OK Cloth Aluminum Plate Spandex Fiber Color: Black, Gray(optional) Size: Small, M, L Size:S Length:15cm(5.91inch) Recommended Body Height:110-140cm(43.31-55.12inch) Upper Arm Circumference:15-22cm(5.91-8.66inch) Size:M Length:22cm(8.66inch) Recommended Body Height:150-170cm(59.05-66.93inch) Upper Arm Circumference:22-29cm(8.66-11.42inch) Size:L Length:27cm(10.63inch) Recommended Body Height:170-190cm(66.93-74.80inch) Upper Arm Circumference:26-38cm(10.24-14.96inch) Package Includes: 1Pc Elbow Brace note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.