(2) single 2021 Topps GPK Chrome Series 4 sealed hobby packs (4 cards). Look for refractors, C-Name variations, artist autographs, and rare parallels including Atomic Refractors, X-Fractors, and SuperFractors. From the chrome reboot of the classic 1986 Series 4 release. #gpk #cardpacks #garbagepailkids