Thanks for the trade.
Although the material used is not exactly like the one I got from Japan, but the quality is good enough.

An excellent and affordable alternative.

I have a small one, about 40cm length.

The filling is more "springy", some type of elastic fibre it is very smooth and flexible.
You can pull and rough up the body and it will return to original shape after a while.

I brought it during my trip to Japan few years back.