Description: This arm sleeve can effectively prevent arm injury du activities. It is made from high-elasticity fabric that is soft, comfortable, and breathable. These arm sun protection sleeves can shield your arms from UV radiation and prevent muscle strains. It is made of high-quality lycra which is durable and comfortable. There are four sizes for the sleeves: M, L, XL, and XXL. It is suitable for various outdoor activities such as golf, tennis, fishing, baseball, climbing, cycling, soccer, or driving. Item Name: Sleeve : Lycra Size Details: M Size: Length: 38cm/14.96", Top Circumference: 23cm - 27cm/9.06" - 10.63", Below Circumference: 13cm - 15cm/5.12" - 5.91" (Approx.) L Size: Length: 39cm/15.35", Top Circumference: 25cm - 29cm/9.84" - 11.42", Below Circumference: 15cm - 18cm/5.91" - 7.08" (Approx.) XL Size: Length: 40cm/15.75", Top Circumference: 27cm - 32cm/10.63" - 12.60", Below Circumference: 18cm - 20cm/7.08" - 7.87" (Approx.) XXL Size: Length: 41cm/16.14", Top Circumference: 29cm - 34cm/11.42" - 13.39", Below Circumference: 20cm - 22cm/7.87" - 8.66" (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 Sleeve Effectively prevents arm injuries du various activities High elasticity fabric ensures a soft, comfortable, and breathable fit Provides UV protection to shield your arms from harmful radiation Made from high-quality Lycra for durability and comfort Available in four sizes: M, L, XL, and XXL to accommodate different arm sizes