Compatible vehicles - Pair of hydraulic front strut shock absorbers with coil springs - Compatible with Chevrolet Malibu 2004-2012 - Compatible with Pontiac G6 2005-2010 - Compatible with Saturn Aura 2007-2009 Replacement numbers - Replacement for 172200 and 172199 - Each unit is quality checked before leaving the factory to ensure it meets the needs of the vehicle Material and construction - Front left and right struts are made of high quality material - Designed to perform in a variety of bumpy environments - Provides a smoother ride and longer service life Design and function - Hydraulic shock absorber uses the latest design - Coil spring on the shock absorber buffers a large impact into multiple smaller impacts - Damping force from hydraulic oil absorbs the smaller impacts and converts them to heat released into the air - Acts to provide effective shock absorption Use scenarios - Daily commuting on rough city roads with potholes - Highway driving where occasional large bumps are encountered - Long road trips over uneven pavement or speed bumps Notes - This is a front pair (left and right) shock absorber assembly with coil springs - Direct replacement for the listed models and replacement numbers - 100% quality checked to ensure compatibility and performance for the specified vehicles