Thank you for looking. This is a black armband with a Velcro closure. I have some left over, so I'm offering them to anyone who likes them. The end of the band can be securely fastened with Velcro. The band is not elastic. I've tried stretchy types before, but the rubber deteriorated and the material stretched, making the tightness weak, so I've settled on this type recently. The uses are limited only by your imagination. How about using them to adjust sleeve length, such as holding down the cuffs or sleeves of long-sleeved outerwear or shirts? I find them very useful for holding down my shirt sleeves during golf rounds and practice. Please note that all sales are final (no cancellations, no returns). Please judge from the photos. I have several available, so if you would like more than one, please let me know how many you need. (For multiple purchases, I will offer a discount of 100 yen per armband.) Please note that the listed price is for one armband. If you have any questions, please let me know in the comment section.