3 sizes of ramekins in one mold! Sizes / measurements of complete ramekins: Small: 0.5×0.3cm (0.196 x 0.12 inches) Medium: 1×0.6cm (0.39 x 0.23 inches) Big: 1.2×0.7cm (0.47 x 0.28 inches) Material: High quality silicone with oil-release feature (Unique to Japanese made molds by Clay Jewelry Line and Floree) Made in Japan Original Clay Jewelry Line mold Oven-safe up to 180 ° C Compatible with: UV resin, Epoxy two part resin, air dry polymer clay, oven-type polymer clay, resin clay (Grace clay, modena clay and cosmos clay), lightweight clay (Hearty, Angel, etc), Silver and gold clay *Visit our FAQ to learn more about oil-bleed silicone molds For CLAY: Recommended to apply a thin layer of baby oil or mold oil so that your clay pops out easily. For UV Resin / Epoxy: After 20 to 30 uses, please use mold release agent with the mold to help maintain mold in good condition. Check out other molds here: http://etsy.me/2EMeQaM