They are made of polypropylene, and the thickness (2 mil) and size (2 5/8x 3 11/16) are all clearly noted on the packaging
The sticker stamps are very small and I found it kind of hard to place them exactly without using the tool
But if budget is no obstacle, I'd load up on tutors: 10 is a fine number, for example
This matches Pokmon TCG and others like Magic: The Gathering
CYHO-JP035 Cyberse Witch Link 2 DARK Cyberse Link Effect Monster ATK 800 Links: Bottom Left, Bottom Materials: 2 Cyberse monsters You can only use this card names (1) and (2) effects once per turn each
But Ive tried to build a narrative around these cards and what the set is doing well, while highlighting the cards I think will matter in Standard, the fewer that will work in Pioneer and Modern, and the pile that well all be sleeving up for Commander soon