ECCPP Lift Supports Rear Trunk Struts Gas Springs Shocks for 2000-2005 Chevrolet Impala,1999-2007 Chevrolet Monte Compatible with 4120 Strut Set of 2 FITMENT - Gas struts shocks lift supports for 2000 2001 2002 2003 2004 2005 Chevrolet Impala,1999 2000 2001 2002 2003 2004 2005 2006 2007 Chevrolet Monte Compatible with SG430022 SG430034 4120 lift support strut QUALITY - Rust-resistant Nit-ride corrosion resistant piston rod extends product life, Multi-Lobe Seal make gas springs more tolerant to vibration and extreme temperature, 100% brand new and tested to meet or exceed OEM specifications FUNCTION - Use compressed gas, contained in a cylinder and compressed by a piston, to exert a force to support the weight of front hood or rear liftgate tailgate hatchback doors while they are open, no need to hold the door up with your head EASY INSTALLATION - Easy to install with simple hand tools in just minutes - no special tools required for installation NOTICE - Please check the description and compatibility chart before your purchasing. We provide ONE YEAR WARRANTY for all our lift supports. Please contact us if you have any question