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NYHighlanderFanShown on that link is the larger 2.5oz size pouch. The smaller pouch, like the one currently on ebay that was graded by GAI, is only a one ounce size. There's no way cards came in the smaller pouch.
I'll be the first one to question GAI. Cards wouldn't fit inside those little pouches without damage. But they definitely would fit comfortably in the larger size pouches!