Easy to release and clean up with soap water. Perfect for making decorative resin crafts such as coaster, beverage coaster, bowl mat etc. Hexagon, round and square gives you more advanced beauty, and your creation is unique in the world. The silicone resin 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 perfect to use.