Specifications: Perfect for tennis, golf, volleyball, basketball, softball, baseball, weightlifting and many other athletic activities. The compression of the arm sleeves alleviates joint and muscle pain, hastening muscle recovery. Apply even pressure across your elbow joint, reduce muscle swelling and alleviate pain and discomfort. Elasticity provides superior support, comfortable and won't compromising your mobility. Made of nylon and spandex material, wear-resisting and breathable. They can retain heat, reducing stiffness in muscles and joints to protect your elbows from injury during a long time use. Easy to wear and take off, anti-slip design to ensure its tightness. Item Name: Elbow Brace Material: Nylon + Spandex Features: Knitted, Elastic, Anti-slip, Anti-Collision Length: 23cm - 25cm/9.06" - 9.84" (Approx.) S Upper Caliber: 10cm/3.94" (Approx.) M Upper Caliber: 11cm/4.33" (Approx.) L Upper Caliber: 12cm/4.72" (Approx.) 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. Package Includes: 1 x Elbow Brace