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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
The Under-21 Base Set features 150 nextgeneration superstars
Each case contains sixty (60) Autographs and one (1) Bon Voyage or Helix insert card
veterans and legends in this premium release
Let's Go - Hobby Exclusive
four (4) inserts
2025/26 Topps Signature Class Basketball Mega Box Tennis The Under-21 Base Set features2025 26 Topps Signature Class Basketball delivers a dynamic mix of top tier veterans and the game's brightest rising stars across a 150 card base set, including 50 rookies featured in both Paper and Chrome parallels with a full spectrum of colors. Signature Class is available across both Hobby and Retail formats, giving collectors multiple ways to experience the product. The product introduces an exciting lineup of new inserts such as High Fidelity,
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