This set of 25 20-gram Mini Skeins contains the 25 unique colors from my 2020 Advent Calendar. You will receive the 25 mini skeins, labeled by number. They will not be individually wrapped since the cat's out of the bag (no surprise here).
If you're looking to make Casapinka's "Secret Life of Cats (and dogs)", any fingering weight base will work well. This is the exact color set that was used in her original sample, and the pattern can be purchased separately here.