Set of 4. GTS Tuning, adjustable, coil over gas shock absorbers. 2 have a spring rating of 175 x 1.9, the other 2 a rating of 275 x 1.9. Bought new for a locost build but unused. They have a 1/2" bolt hole in each end and are aproximatly 13" between centres.I paid £200 for them about 3 years ago, looking for £100
(http://s1.postimage.org/oD5E9.jpg) (http://www.postimage.org/image.php?v=gxoD5E9)