Make sure the picture on the box says HST in the top right corner. The box looks very similar to hydra shocks. I have read that HST stands for hydra shock two, so beware. I think the HST's are hard to find (back ordered on numerous sites) and some people are exploiting that. Good ol capitalism (As long as you aren't the one being capitalized on)
On another sight they were selling hydra shoks using HST1 as the moniker FYI.