Haifu Carbon Sponge?

[TensorBackhand]

https://www.aliexpress.us/item/3256806665714416.html?gatewayAdapt=glo2usa

Any idea about this rubber from Haifu? How does this carbon sponge play?

I had another sheet of H39 Haifu Whale, and it was pretty good. A bit tacky, and responded well to booster.