Capacities vary: mini portfolios usually hold about 60 standard cards; common 9-pocket portfolios list 90 cards single-loaded (about 180 double-loaded); larger 9-pocket designs list up to 126 single (about 252 double).
Most use 9-pocket pages. Common page counts are 10 or 14 high-clarity pages; some listings describe 10 side-loading pages for smaller or mini/full designs and 14 nine-pocket pages for larger portfolios.
They fit standard Pokemon trading cards (2.5 inches x 3.5 inches).
Double-loaded capacities are roughly twice single-loaded counts. For example: 90 single vs about 180 double, or 126 single vs about 252 double.
Some mini portfolio listings include a Pokemon TCG booster pack as a bonus.
Suggested ages vary by listing; some show "6 years and up" while others list "12 years and up."
