Thank you for viewing. This is a yoga mat band strap. It came with a yoga mat I purchased, but I'm selling it because I don't use it. It's new and unused, but it has been stored at home by a private individual, so please understand this before purchasing. Length: Approximately 48cm Loop diameter: Approximately 16cm Band width: Approximately 2.5cm Please feel free to ask any questions in the comments. *Please also see my profile.