Features:1. Unisex， one size fits most. Unless you have really huge arms these should fit comfortably cause they are stretchable.2. These sleeves are cold water washable and best if left to air dry.3. They are U.V. protective in the summer and keep you warmer in the winter. Specifications:Condition: New and high qualitySize: About 47cm (18.5”)， increases when wornMaterial: Nylon 92% + Spandex 8%Package Included:6 x Tattoo Arm Sleeves