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British Birds & Wildlife cards
Size Guide
| Cards | Advent Calendars | |
|---|---|---|
| Small | 150cm² or less e.g. 12x10cm |
Advent cards 180-300cm² e.g. 17x12cm |
| Medium | Around 225cm² e.g. 15x15cm |
Around 800cm² e.g. 35x25cm |
| Large | 275cm² or more e.g. 20x15cm |
Around 1000cm² e.g. 30x40cm |
| X-Large | Around 2000cm² e.g. 52x38cm |