crapmonster
100+ Head-Fier
I'm not entirely sure to be honest. I got them off a seller here awhile back in combo with cups+distancers by calico. It does have the different foam densities (hard around the inside and outside rim, and soft towards the center). Some pics if it helps. Its hard to see but there is an area there on the lower left where i tried rubbing it last night and I lost a good chunk of foam. Fell off as dust and strips.

