Our manufacturer specialize in producing rubber tire valves and brass tire valves, tire repair tools, wheel spacers, we own ISO9002 & QS9000 certificate, and can supply high quality and good price to our customers, our products are selling to worldwide markets for many years, and receive good comments from our customers, we can absolutely guaratee the quality, if you will have any interest in our products, please don't hesitate to contact me by email: .com, thanks, hope we will cooperate successfully!