Dealer's choice...
All materials in this category are solid. You'll get a component pen or two out of each, depending on what you're trying to make. Some blanks are square with minor exterior defects (like saw blade marks or slightly unsquare). Some blanks are rods that came up short.
Everything in the mystery category is usable, but not quite perfect to be able to sell with my regular blanks. Just give it a shot, you won't be disappointed for the price.
Select a pen blank (rod or square) or a bottle stopper blank (always round). Some stopper blanks are solid color overpours or multi colored short pours.