On my site, I was blessed with a box of packs by the manager going by "Jacksonville Jobu." In that box, this pack of Japanese cards instantly caught my eye - as I'm sure you can imagine.
The wrapper is a silver material that is not foil. I guess it is plastic - very thing, like a trashbag feel to it. The front of the wrapper features Japanese writing, of course, but also the number "2" (indicating there are two cards, I discovered upon opening the pack). There is also the "QCard" logo and "Official Pro Baseball Card" on the front. That little guy you see at the bottom is actually the team logo on the top card in the pack. That is a little see-through window.
The back of the pack is chock full of Japanese writing. The 120 indicates there are 120 cards in the set (I discovered online through a convoluted search). Also on the back is a UPC code, a phone numbers, and a "Q-Card Company Store" insignia.
The cards themselves are smaller than our squared off traditional-sized baseball cards. These cards are also made of a stiff plastic and are made to resemble credit cards. The fronts feature a white border with a gold-ish inset border, the player, the player's name in English in an arching banner, the team logo is planted in the bottom center.
The backs of the cards have (presumably) bio and player stats. The upper right corner has a white sticker for signatures, which is a cool touch since these are supposed to mimic credit cards. Watanabe's card is the one on the right with the yellow highlight. I assume it is yellow because he was one of the great players in the league (according to Internet research). I could certainly be wrong about that.
These are certainly unique collectibles!
You can read more about these: http://japanesebaseballcards.blogspot.com/2012/05/q-card.html