I have a pair of rear air shocks for a 1994-96 Buick Roadmaster. Probably fits other years and applications, too. Do your homework. They are Monroe MA819 28-80467 and are still brand new in the box. Bought them for my 1996 Roadmaster sedan daily driver but got rid of the car less than a month later and never used them. They've been sitting on a shelf since then. They list for around $80.00 at your local parts store. Looking for $50.00 which includes shipping. ($40.00 for shocks and $10.00 to ship.)
See photos below.
Thanks

 

Price reduced to $45. ($35 for the shocks and $10 to ship.)