Features: Elbow protection: The ribbed texture of the elbow sleeves provides additional support to prevent your child's elbows from harm, with strategic padding to reduce impact injuries during rough play. Light and portable: The compact design of the elbow brace makes them easy to carry in a backpack, gym bag, or school bag, allowing children to wear them on various occasions for protection. Specifications: Main material: 90% nylon, 10% spandex and latex Main color: black, purple, rose pink, sky blue Size: M size/ about 6.3 inches/ 16 cm long Diameter of cuff: can be stretched from about 3.34 inches/ 8.5 cm to 3.74 inches/ 9.5 cm Package includes: 4 Pairs of kids elbow compression sleeve Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays