I finished up this set a little while ago, it is out of 2002 Topps. These Hobby Masters cards are on a nice thick card stock but I am not really overwhelmed with the design. It is a 20 card set that features star players with no other real purpose or connection. These were found in 1 of 25 hobby packs (about 1 per box I believe) and 1 of 16 retail packs.
Here is a look at the back of the cards, they feature a second up close portrait photo and a write up about the player.