just the tip

Looking at Mancini's cut-to-fit pushrods, it doesn't say whether they're for solid or hydraulic lifters. Is the 5/16 talking about tip size or tubing? Both?

5/16"
Mancini Racing "Cut to Fit" Pushrods Set, (5/16")

3/8"
Mancini Racing Cut to Fit Pushrods Set, (3/8")

Happy Friday!