Yes, purchased from BMG.
It is the loop over top step too. With the loop over step aider, it hangs away from the tree more and helps in placing your boot on the step. As stated before, I would advice against the 20" spacing. I'm 6'4" and at ground level can place the top step of first stick at 7', that's standing straight up. After the first stick you can't reach as high because your body isn't as straight leaning back in the lineman's rope. I've found that with the 20" spacing the bottom step of the aider will almost touch the top step of the previous stick or at least very close. 18" spacing would be ideal i honestly believe, not to mention that stepping down into the aider would be easier also.