Small block crane rocker arms

slappy ..
just looked at these on crane's website and i thought the pic looked like they are for a roller cam ..
are these rockers for a hydraulic flat tappet / shaft app .. or for a roller / stud app ? .. please advise .. thanks

***my bad ! .. just looked on crane's website again and a different description/pic popped up for me this time .. maybe i punched in the wrong number before ??? these rockers look like the shaft mounted ones, similar to my stock ones .. sorry ..