What material is better for a Feng Shui compass?

I think high-density board material is better.

Bakelite seems to be a kind of plastic. Relatively heavy. I've used Bakelite disks.

Now I hear people say that high-density materials are more durable and the price seems not to be high.

I don’t know the specifics. You can research it yourself.

There don’t seem to be many manufacturers that use high-density board to make compasses. I only know that Jiyitang uses high-density board, and Rixingtang also uses high-density board.