1. MOISTURE ABSORBENCY - You an your guests can chill an be worry about the moisture ring mark or pule of water from conensation of the rink. Thanks to these coasters which are me out of ceramic. It can absorb the moisture from the rinks. Best of all, ue to such material, the coaster will NOT cling or stick to your glass when they are wet in comparison to other material of coasters. "Making sure you stay ry an cool when you are chilling in style 2. CORK BACKING- Cork backing esign gives an extra grip of the coaster to your countertop or furniture. It also give a elicate touch (protects) to the surface as well. Making sure the coaster will stay in place an in style 3. IFFERENT PATTERNS - Comes in sets of 6, each in ifferent pattern to suits your surrounings an moo. After all, sometimes we prefer to have ifferent looks for ifferent occasions, therefore, why can't the coasters be the same too? 4. IMENSIONS: Comes in roun shape esign, in about 10.2cm (about 4 inches) in iameter an 0.6cm (0.25 inches) thick. This measurement is one by per coaster.