Materia: The product is made of quality material and technology, please feel to e it, I think it will become your good helper for the sports time.Unique Gift: Perfect for any occasion, as a gift for Valentine's Day, Mother's Day, Birthday, Anniversary, or Children's Day. It's even a great gift.Good after-sales service: Our store promises to return the goods for within 30 days of arrival. If you have any questions, you can contact at . We will reply within 24 hours and promptly solve your problems. Thank you for choosing , and we wish you a happy life!GOOD SERVICE: Our store promises returns within thirty days of arrival,if you have any questions you can contact at ,we guarantee a timely within 24 to solve the problem for you in real time!Fits Most Adults: It measures about 10 inches, making it a perfect fit for most adults.