AUTHENTIC Brazilian Agate Coasters - only dif. from my other agate listings: these are LASER CUT & polished around the edges to create a perfect circle. 4" in diameter each. Love the unique patterns completely nature-made meanwhile perfect for the home and serving guests !! No lo-ball offers please! These are well worth the price! RUBBER BUMPERS NOT INCLUDED!!! ** However I strongly suggest you get some if you plan to use these as coasters - they keep both surface AND Agate protected