You are bidding on one of these jumbo packs, but not necessarily the exact pack pictured. I have a few dozen of these, so if you're interested in ripping 1990 Topps, these are a great option. If you buy 5 of these, it's almost the equivalent of a wax box. In 1990, Topps packed cards in a myriad of different ways, but the 106 card Jumbo Packs were special in that they each contained 2x glossy rookie cards. These cards were only available in Jumbo, so they're comparatively rare compared to the rest of the set. There were 33 of the 1990 Glossy Rookie cards, most notably Ken Griffey Jr. and Gary Sheffield.
In addition to the glossy rookies, the 1990 set also includes the Frank Thomas RC as well as a cool Nolan Ryan tribute subset. When found in GEM MT condition, many veterans and the Thomas actually command pretty high prices. Many buyers may also recall that the 1990 Topps set had a number of partial blackless variations. Note that the blackless variations were never confirmed to be found in jumbo packs. I've also opened a few of these up just to verify, and all cards from the affected sheet were the normal 'full black' versions.
$4 shipping to the lower 48, $1 each additional pack.