This item was used by a junior high school boy at a track and field competition. The frequency of use is unknown, but it is in clean condition. It was stored in a closet, but I am selling it because I do not plan to use it in the future. Basically, it is sold as a set of two, but single items are also available. If you wish to purchase a single item, please comment. Please note that single item sales will be more expensive due to shipping costs. Please be aware that this item is also listed on other sites, so there is a possibility of sudden removal of the listing due to a sale, as well as cancellation of the transaction. It will be shipped in simple packaging. Please understand that this item is stored at home before considering a purchase.