Will these 3 point shoulder belts work??? Help before I bid!

[1970blazin]

I am building a roll bar for my blazer, and I THINK these are a 3 point shoulder belt set up and it LOOKS like they are retractable. They are made for commercial trucks, but the price! $9.99 buy it now, is awesome!! I am thinking about ordering 4 sets, but am a little scared they may not work or fit right. The female end is attached to the rod in the pic, and looks to be maybe 12" to 14" in length. What do you guys think? $50 for 4 sets delivered sounds to good to be true, huh?
http://cgi.ebay.com/ebaymotors/ws/eB...tem=2452947721

P.S. I am going CRAZY not being able to post pics!