Our manufacturer also specialize in producing rubber tire valves and brass tire valves, tire repair tools, we own ISO9002 & QS9000 certificate, and supply high quality and good price to our customers, our products are selling to worldwide markets for nearly ten years, and receive good comments from our customers, we can absolutely guaratee the quality, if you will have any interest in our products, please dont hesitate to contact me , thanks, hope we will cooperate successfully!