Both can be seen being used at the same time.
The wooden boxes contain the links. I’ll have to build some of those as well.
You can see the Eureka black plastic boxes just on the left edge of my diorama photo.
Both the Djiti metal and plastic boxes are out of proportion. That’s why I had to do my own metal ones. But I’ve always done them that way. It’s about time someone produced them, but the word I have is it’ll take several months.