Specifications:Arm sleeves are the perfect accessory for sports gym training, outdoor activities.Suitable for basketball sports wear.Breathable and anti-collision design, great for arm elbow protector. Type: Arm SleeveGender: Men'sMaterial: Spandex, SiliconeStyle: FashionQuantity: 1 Pc (Not 1 Pair)Garment Care: Hand-washApplicable: Sports, Basketball, Cycling, etcFeatures: Elastic, Breathable, Anti-Collision, Lengthen, Arm Elbow ProtectorSize Details[Our Size M] Total Length: 40cm/15.75", Upper Arm Circumference: 25cm - 33cm/9.84" - 12.99", Down Arm Circumference: 13cm - 21cm/5.12" - 8.27", Suggest Weight: under 60Kg (Approx.)[Our Size L] Total Length: 41cm/16.14", Upper Arm Circumference: 27cm - 35cm/10.63" - 13.78", Down Arm Circumference: 15cm - 23cm/5.91" - 9.06", Suggest Weight: under 70Kg (Approx.)[Our Size XL] Total Length: 42cm/16.54", Upper Arm Circumference: 29cm - 37cm/11.42" - 14.57", Down Arm Circumference: 17cm - 25cm/6.69" - 9.84", Suggest Weight: Above 70Kg (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 Included:1 x Arm Sleeve (1 Pc, Not 1 Pair)_COSTBUY