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Ships from hong kong. This arm sleeve is great for a variety of outdoor activities, such as bike cycling, running, skating, hiking etc. They protect your arms from sunlight. Enjoy an improved quality of life with greater support for your arms for daily work. Being able to train harder and longer. Its super cool tattoo patterns show personalized style. We have many different kinds of arm warmers in our online-store for your selection. These arm sleeves come in a pair (2 sleeves) - you can use them for each arm, or keep the other as a backup or rotate them. These also make for a perfect gift. Sleeve size: the upper cuff diameter is about 11-12 cm/4.33-4.72 inches; lower cuff diameter is about 7-7.5 cm/2.76-2.95 inches. The length is about 43-45 cm/16.93-17.72 inches. Material: 92% nylon + 8% spandex. The arm cooler(1 pair/set) hand cover. One size suitable compression fit for unisex. In summer,definitely feel cool when these sleeves on,but in winter, it can make your arm warmer too , yes , it is so amazing.99.8% uv protection, got no sunburn or bug bites. Not easy to cause bacteria, fast sweat kick-away and fast dry, make your skin fresh all day. For all outdoor sports and activities, such as golfing, cycling, fishing, driving, jogging, claiming, boating, gardening, basketball, tennis and so on. Great skin protection when you working outside or doing any outdoor activities. Suitable for indoor activities too, even your workplaces (you arms won't sticky on your desk).