Bilstein 5100 shock absorbers. Came off of 2004 Jeep Wrangler with a 4-in lift. Shocks have about 5,000 mi on them and Wrangler driven on highway only. Lowered Jeep and cannot use these. $75 per set. Part numbers visible in the photograph. About $240 a set new. As many other applications other than a Jeep