Arabic that lives in the toy box, not just the classroom
This is the part I care most about. Arabic alphabet puzzles teach letter forms through handling them, tracing the shape with a finger, turning the piece the right way up. For a child of three or four that is far more effective than looking at a screen, because the shape goes into the hands before it goes into the head. If you are raising bilingual children in Dubai, Abu Dhabi, Riyadh or Doha, having Arabic somewhere other than a lesson makes a real difference to how naturally it lands.
The Build a Mosque wooden blocks and the Ramadan puzzle sets do something similar for Islamic foundations. A four year old is not ready for a book about it. She is completely ready to build something with her hands and ask you a question while she does.
There is a reason all of it is wooden. There is nothing to switch on, which means the child has to supply the thinking, and that is the whole mechanism. A set of blocks does not tell her what to do next, so the same object gets played with differently at two, at four and at six, instead of being mastered in an afternoon and abandoned. Wood also survives.
It gets dropped, chewed, stood on and thrown, and it is still there next year. After replacing enough plastic toys with broken hinges and dead batteries, that durability stops feeling like a small thing.