[Premium Material]: TR-416 metal valve stem is made of premium brass and flexible EPDM Rubber, with rust resistant and corrosion resistant. The metal valve stem is sturdy enough to withstand harsh weather or muddy roads, has a long service life [TR416 Metal Valve Stems]: The valve stem is used to keep the air in the tire. The metal valve stem can ensure that there is no air loss when driving the vehicle. [Specifications]: 4*TR416 metal valve stem, 1 1 / 2 inch effective length, maximum air pressure of 200 psi. Full size is 1.65 "L x 0.75" w. Please measure the size before purchase to ensure that the TR416 metal valve stem is suitable for your car. [Easy Installation]: Deflate the tire and let the tire off the rim. Insert the new valve stem from the inside of the rim until it clicks into place. Replace the valve stem while replacing the tire to ensure long service life of the tire and safe driving. [About Us]: We are committed to creating a perfect product experience for customers. Our goal is to serve every detail and bring convenience to every family.