DTA 40393 Shocks Struts Full Set for 4 corners of the vehicle (pack of 4 pcs) Fits 2007-2012 Nissan Altima; Springs Not included Made to OE quality standards and performance; 2007-2012 Nissan Altima High corrosion resistance and long service life Teflon bonded piston seal to keep friction down and temperature cooler so that valving stays firmer All-around welding on the spring seat instead of spot welding OE quality piston by NOK , ensuring product quality and durability