Used once and then stored. Never used outdoors. The air pump cap (black) doesn't snap on securely. ● Other notes: You can purchase this item immediately. Please consider this item with the understanding that it is managed by a private individual. If someone else wants to buy the item while price negotiations are ongoing in the comment section, the person who purchases it first will be given priority, and we will ship it to them. For textbooks and reference books, there is a possibility that we may overlook whether or not there are any markings. Please understand. We will ship the item as soon as payment is complete. Thank you for your cooperation in making the transaction smooth. ☺︎