1、The fabric is made of elastic weft-knitted fabric, soft and comfortable, and contains Lycra ingredients for moisture absorption and perspiration. 2、The upper mouth adopts silicone anti-slip strip to effectively prevent falling off during exercise. 3、The anti-collision material is made of sponge high pressure foam, height 10mm, washable and high temperature resistant. 4、It provides presure to increase circulation, reduce inflammation, and support the joint.  5、Suitable for basketball, baseball, volleyball, tennis and most of activities. 6、 Product name: elbow guard, arm guard Protection parts: elbows, arms Fabric: Polyester Design highlights: elbow joint + soft sponge on the back of the hand Size Information Size   Length   Upper circumference     Lower circumference     Suitable for weight M      41cm            25-33cm                         13-21cm                            60kg L       42cm            27-35cm                         15-23cm                             70kg XL     43cm            29-37cm                         17-25cm                             70kg or more 10cm≈3.94inch Notice: Due to the different monitor and light effect,the actual color maybe a slight different from the picture color. Please allow 2-3cm differs due to manual measurement. 1 x Elbow Padded Sleeve