Absorbent Drink Coasters: Ceramic top on the ceramic coasters help capture moisture from ice-cold drinks and protect surfaces from hot coffee cups Slip-Resistant Coasters With Cork: Absorbent coaster features a durable cork back to help protect furniture or tabletops from scratches or scuffs Dont Stick to Your Glass: Your glass can be dripping with condensation, and coasters will all be absorbed and not form a puddle. Drink coasters are heavy enough that even after condensation we can lift our drinks without them annoyingly sticking to the bottom of the container Coasters Set With Holder: Coasters set comes with a holder that stores them in a stacked position Widely Used: Coasters with 4 inches diameter size match all commercial type of cups and mugs, making them fit with coffee cups, drinks, craft cocktails