This is designed to securely hold a micro:bit with a bit:buddy board.
The bit:buddy is available here: https://www.lectrify.it/products/bitbuddy
This can be a starting place for coding projects where students can explore different features of the micro:bit and coding through prompts like:
The author remixed this model.
This was enlarged to fit the micro:bit. Pegs were inserted to hold it in place and a jewel friction latch was added.