Product review (5 stars): Better than OEM, easy to install, clear instructions
This unit replaces the OEM grease-lubed support with a plastic bushing.  It's easy to install, and includes decent instructions.  There are several youtube videos that cover this replacement job, and I heartily recommend checking them out, first.  The procedure for getting to the drum supports isn't necessarily intuitive, but it is fairly easy.  This is an easy-to-medium level difficulty replacement.  A lightweight girl  might have a bit of trouble putting enough upward pressure on the rod to compress the spring after attaching it to the drum.  I had a significant improvement in washer stability after installing this kit.  My washer was about ~5 yrs old.