Not only are they unquestionably basketball, their cards are already listed in the proper years for the most part. There may be some promo issues that are not yet listed, but the three main releases they've gotten over the years are already up.
VERY slow trading due to health problems. Not transferrable so safe to trade with, just moving is painful and can't always access the cards.
Cardboard History My COMC
New Collection Website: Cardboard History Gallery (Still under construction)
Tips on how to make your scans look like the card does in hand (No more washed out, fuzzy scans!):