package of 4 chrome metal automotive car truck wheel valve extensions caps stem<br /><br />? specification<br />color:chrome<br />dimension: 39mm<br />diameter:8mm<br />material:chrome plated brass<br />ips:60 psi maximum<br />placement on vehicle:left， right， front， rear<br /><br />? feature<br />1.100%  and high quality.<br />2.proper tire pressure improves gas mileage， handling， braking and durability<br />3.easy installation.<br />4.fitment:passenger cars and light trucks<br /><br />? note<br />1.we provide clear pictures， measurements where possible. please check as much as possible to make sure the item is the one that you need.<br />2. please allow 0.5-1 inch difference due to manual measurement.1 inch=2.54cm<br />3.the color of the actual items may slightly differentthe listing images due to different computer sn， thanks for your understanding. <br />4.instruction is not included.professional installation is highly recommended!<br /><br />? package included<br />package of 4 valve extensions