Thank you for viewing my work. This is a black arm band. The arm band simply holds up your sleeves, allowing you to roll them up quickly and put them back down just as easily. No more rolling and rolling. Your shirts won't get crumpled. You won't have to worry about your sleeves falling down on flowy blouses, wide-sleeved sweaters, or pajamas. Arm bands are convenient for water work during the long-sleeved season, but they are also great when it's hot, when you're writing, or when you want to roll up your sleeves for crafting. Recently, balloon sleeves with wide cuffs are cute, but they are easily wetted or soiled. Keep them up and clean with these! When your sleeves peek out from your jacket, keep them up for a neat look! Even children who can't roll up their sleeves can do it with these. (Please consult before purchasing for size changes) They are a necessity for me and very helpful! They can also be used as a water stopper, perfectly holding your arms in place during face washing. (The effect will be reduced if water soaks in, such as during shampooing) How about a small gift for friends, mothers, grandmothers, or those who have helped you? The fabric is about 2.5 cm wide, about 20 cm long, and has 1.5 cm wide elastic inside. This is a handmade item by an amateur. If you have any concerns or are looking for perfection, please ask. Thank you very much m(__)m Arm band, sleeve holder