This sleeve set includes 11 packs of sleeves, which is enough for the base game and all its expansion cards:
8 Packs of Project Card Sleeves = 400 sleeves
1 Pack of Corporation Card Sleeves = 50 sleeves
1 Pack of Prelude Card Sleeves = 50 sleeves
1 Pack of Global Event Sleeves = 50 sleeves
Total: 550 Sleeves.