Material: Our sleeves are made of durable, weather-resistant and stretchy nylon. Size: The sleeve length is 39 cm, the width is 9.5 cm. Keeps muscles comfortable during sports and promotes faster muscle recovery and better blood circulation. Seamless comfort: Thanks to seamless technology, it leaves no marks on your arms. Fast sweat wicking and quick-drying, keeping your skin comfortable all day. Practical and durable: Our sleeves are very durable and stretchy. The elastic waistband keeps the sleeve in place, while the thumb hole protects the hand and offers an excellent solution for covering temporary tattoos. Suitable for all sports and outdoor activities: Our lightweight sleeves are designed for warm weather; whether you're running, golfing, fishing, playing basketball, cycling, hiking, driving or even gardening, they will keep you comfortable. Buy our products and take advantage of 30 days of worry-free after-sales service! If there is a quality problem with the product you received, please contact us. We will return or replace the item free of charge. This ensures that you receive a flawless product. If you have any questions about the use of the product, please contact us. We will provide you with relevant answers so that you can make your purchases with peace of mind.