MEASUREMENTS: the big coaster mold measures 8 x 8 x 1.5cm/ 3.15 x 15 x 0.60inch, perfect size for making your resin coasters DESIGNED WITH A LIP ON THE MOLDS - the round resin silicone molds have a lip on them to keep beverage spills, drips, condensation, etc. from running off the coaster, hold the glasses in place, which is very nice WIDE RANGE OF APPLICATION - the resin casting mold is very versatile in its usage! Perfect mold for epoxy resin coasters, small flower pot base, conceret, plaster, cement and polymer clay etc; use this mold to make handicraft gifts for your loved and friends that they absolutely love QUALITY MATERIAL - these round coaster molds are made out of flexible, sturdy and silicone, which makes it easy to release and clean up with soap and water 4 pack round silicone molds for coasters, great molds for your different diy craft projects, quality material allows for your sustainable use