Found this very familiar sponge in a Sasa store in Hong Kong last year. Though packaging suggests its for the lips, this cutie looks very similar to Etude House and Sonia Kashuk blending sponges.
It's definitely reasonable for HK$ 28 (Php157.00 / USD 4.00) compared to other similar cosmetic sponges I've seen.
For the lips or not, I've been using this to blend cream foundation and concealer and I'm loving it!