Complete strut cartridge, ready to install.  No need to fight with dangerous spring compressors and reuse your old spring.  See the Monroe site for fitment, but this is what they list;

Hyundai	Azera	2010-2011	Strut And Coil Spring Assembly	Front		2
Hyundai	Azera	2006-2009	Strut And Coil Spring Assembly	Front		2
Hyundai	Sonata	2010	Strut And Coil Spring Assembly	Front		2
Hyundai	Sonata	2006-2009	Strut And Coil Spring Assembly	Front		2