This lightweight structure will support the weight of an open drawer.
It probably has other uses, we leave it to you.
It seems to be MDF or some other artificial wood.
Thanks to the sharp eyes of u/rwk- who spotted this accessory in situ:
https://www.reddit.com/r/baduk/s/77oYxon2lB
Shipping Details:
Ships from Colorado, USA. Please allow 3 days for handling, then you will receive emails with tracking updates. Shipping box: TBD