Review on 🖼️ CoasterStone Absorbent Coasters - Frank Lloyd Wright Art Glass Collection - Set of 4 by Paul Sanchez

They are made of stone not glass. Can't comment on durability as it's been a few weeks and they are more for display than functionality in my opinion. They don't absorb, but at least they are a barrier. All in all I would still recommend these for display but I would avoid them if you want coasters that are absorbent or not brittle as I have a feeling if these coasters were ever to hit my hard floor they would be broken.