|The cards are on WHITE card stock. The photo makes them look tinted, but they're white.|
The Display Cards (lower left) are smaller. They are intended to be glued to a Display Board.
Display Cards are used to present all 41 Soundabet Sounds together as a whole while singing the Soundabet song (like the ABC song).
Flash Cards are for teaching about sounds one by one in more depth.
More info on Display Cards
More info on Flash Cards