MAX is 16" X 10"
it'll hold up to approximately 280 1U keycaps, 2 ISO enter / return keycaps and has a spot for a 2U x 2U square.
These are compatible with taller profile keycaps such as SA and MT3.
MAX ships as a single tray so 1 order = 1 tray.
STANDARD is 11" X 6.5".
Designed for a single 65% keycap set and is compatible with lower profile keycaps such as Cherry, XDA, DCS, SA (row 3 only), DSA, etc.
STANDARD ships as a 2 pack so 1 order = 2 trays.
Note: Cases ship empty, no keycaps included.