Material:The resin molds are 100% silicone,glossy interior surface,easy to demold after fully cured and wash with warm soapy water Package Include :1x coaster resin mold and 1 x coaster holder mold;The coaster mold is designed with 4 cavities so you can make 4 coasters at a time,save time and effort.Rectangle coaster holder keep your coaster organized. Silicone Coaster Molds:These silicon molds can be used for a wide variety of artwork,from coaster making,coaster holder,bottle mats,decorations for holidays or for adding a wonderful touch to your home. Suitable for Many Uses:These coaster molds are great for casting resin, epoxy resin,you can add various pigment powder,resin dye,resin inks to color the clear resin. 100% Satisfaction Guarantee: Don't hesitate to share your finished products with us to inspire other customers. If our epoxy resin coaster molds have any issues, please feel free to contact us at any time.