They are tec-one brand. They have about 25k miles on them. The shock inside is still good. they are adjustable for a 0-3" lift. Tec-one went out of business a few years ago. They are rebuildable, you cant get the parts through tec-one, but i took them to dezert nation and they said its pretty much universal to rebuild a 2.0 coilover smooth body. Looking for about 200 + shipping.