The type of material, size and shape of your erhu bridge has a great impact on the tone of your instrument.
It can make the tone of your erhu brighter, more mellow, more resonant, more nasal, louder etc.
On top of that, the correct bridge will make the high notes sound clearer.
Finding that elusive bridge that suits your erhu as well as your ears will take a lot of trial and error, especially when no one erhu is identical to another hence there is no one type of bridge that suits a particular erhu.
Here we have an array of different kinds of bridges for your Erhu to experiment with.
Check out the multi bridge packs which packs a little bit of each so you can have a go at them all.