Here’s the true testament to the popularity of Panini America’s unique Cornerstones autographed memorabilia insert that made a most memorable debut in 2016-17 Grand Reserve Basketball: The insert has spawned a stand-alone product. And that stand-alone product releases Wednesday. Each six-card hobby box of 2017-18 Cornerstones Basketball delivers, on average, two autographs (including one Cornerstones), one memorabilia card, two base or parallel cards and one insert.

Also included in 2017-18 Cornerstones Basketball? The chase-worthy and one-per-case Downtown illustration cards. In the must-see Quality Control Gallery that follows, we share with you just some of the gems that surfaced during the recent packout process. Enjoy the sneak peek and stay tuned for additional coverage.