They are to be used for aftermarket seats, I bought them new a couple weeks ago but ended up returning my racing seats so I don't need this anymore.

New they are 75+shipping. I'll sell for $40+shipping, which shouldn't be much...

If yo want to see it this is where I bought it from=http://www.andysautosport.com/nissan/2000_2003_maxima/interior/seats/seat_bracket/sparco/spar00035634.html