Configuration:   6 packs per box.  24 cards per pack.
 
2021 Topps Pro Debut builds on last year’s strong release with another year of cards showcasing promising young prospects from throughout MiLB.
 
Build the entire 200-card Base Set including the all-new Base Set – Draft Picks subset!
 
Find 36 exclusive Base Set Chrome Variations & 3 Autograph cards in each HTA box.
 
PRODUCT DESCRIPTION
BASE CARDS
200 total cards split amongst 150 current prospects and 50 new prospects fresh out of the draft.
Base Set Parallels
- Blue Parallel – sequentially #’d to 150
- Green Parallel – sequentially #’d to 99
- Gold Parallel – sequentially #’d to 50
- Orange Parallel – sequentially #’d to 25
- Red Parallel – sequentially #’d to 10
- Black Parallel – #’d 1-of-1
Base Set Image Variations
- Black Parallel – #’d 1-of-1
Base Set Chrome Variations – HTA Exclusive
- Refractor Parallel – sequentially #’d to 99
- Gold Refractor Parallel – sequentially #’d to 50
- Orange Refractor Parallel – sequentially #’d to 25
- Red Refractor Parallel – sequentially #’d to 5
- SuperFractor Parallel – #’d 1-of-1

INSERT CARDS
MiLB Legends – 1:6 Packs – NEW!
Pulling from the classic Topps 1964 design, this insert will highlight some of the top names ever to come through the MiLB pipelines.
- Green Parallel – sequentially #’d to 99
- Orange Parallel – sequentially #’d to 25
- Black Parallel - #’d 1-of-1
The Cogeneration – 1:6 Packs – NEW!
Collect this lineup of power hitting prospects and young heat hurlers to make an electric pairing of prospects.
- Green Parallel – sequentially #’d to 99
- Orange Parallel – sequentially #’d to 25
- Black Parallel - #’d 1-of-1
Major Scale – 1:12 Packs – NEW!
Celebrate the career progression for top prospects as they scale the charts to become Major League ready.
- Green Parallel – sequentially #’d to 99
- Orange Parallel – sequentially #’d to 25
- Black Parallel - #’d 1-of-1
Make Your Pro Debut Winner Card – Lehigh IronPigs

AUTOGRAPH CARDS
Base Set Autograph Variations
- Blue Parallel – sequentially #’d to 150
- Green Parallel – sequentially #’d to 99
- Gold Parallel – sequentially #’d to 50
- Orange Parallel – sequentially #’d to 25
- Red Parallel – sequentially #’d to 10
- Black Parallel – #’d 1-of-1
Future Cornerstones Autographs – Varied #’ing
- Gold Parallel – sequentially #’d to 50
- Orange Parallel – sequentially #’d to 25
- Red Parallel – sequentially #’d to 10
- Black Parallel – #’d 1-of-1
MiLB Legends Autograph Parallel – Varied #ing
- Black Parallel - #’d 1-of-1
The Cogeneration Autograph Parallel – Varied #ing
- Black Parallel - #’d 1-of-1
Major Scale Autograph Parallel – Varied #ing
- Black Parallel - #’d 1-of-1