Thank you for viewing! Instant purchase is welcome! *I planned to use it, but I didn't. ・This is a single hard tennis ball for sale. ・For body maintenance (massage, diet, and lower back pain relief) ・For labor pain relief during childbirth ・For catch ・For playing fetch with your dog It is said that washing and drying with it will remove dirt more effectively and promote drying! ★About Shipping •Shipping is planned via regular mail (non-standard). •Since it cannot be dropped in the mailbox, it will be shipped on the business days of the post office (cannot be shipped on weekends and holidays). Please consider. Purpose...Hardball