These are MR. WILSON grind shoes by SALOMON.

They have two grooves that run not only from side-to-side, but also from top-to-bottom.  That way you can grind going either sideways or forward or backward!

These are TGS grind shoes by ROLLERBLADE.

I tried on a pair once.  They have rolling metal bars in place of grind plates for "faster, better grinds" and "a cooler noise while grinding."  Yeah, well, they're UGLY :P

Go hard.  Go fast.  Just go.  Use your body as it was intended.  Get outside.  Yodel.  Scream.  Contemplate the Big Bang Theory.  Wonder how Cheetos turn your fingers orange.  Keep rolling, striding, pushing, ginding.  Overcome the gravitational pull of TV, of people who say that vert's impossible, of all things that keep you earth-bound.  No rule book.   No commercial time-outs.  No commisioner.  Do a trick that has no name.   Skate for yourself.  Let it rip.

~ from www.rollerblade.com