Specification: Premium material, breathable and elastic, comfortable to wear. Easily to wear it on your arm and elbow for protective function. Suitable for sprains, strains, dislocation shoulder and arthritic pain. Ideal for the healing and prevention of sporting injuries. Size Details: [Our Size S] Upper opening: 11cm/4.33", Below opening: 9.5cm/3.74", Length: 22.5cm/8.86", Recommend elbow circumference: 20cm - 25cm/7.87" - 9.84" (Approximately). [Our Size M] Upper opening: 12cm/4.72", Below opening: 10.5cm/4.13", Length: 22.5cm/8.86", Recommend elbow circumference: 25cm - 30cm/9.84" - 11.81" (Approximately). [Our Size L] Upper opening: 13cm/5.12", Below opening: 11.5cm/4.53", Length: 22.5cm/8.86", Recommend elbow circumference: 30cm - 35cm/11.81" - 13.78" (Approximately). Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement