Feature: These resin molds are made of high-quality silicone material, very flexible and durable, the finished product is very shiny and transparency. These silicone resin molds are for diverse casting materials such as resin, concrete, plaster, polymer clay etc You just need to twist the silicone mold and release the pieces out of the molds when completely cured. Or you could use mold spray, it helps extend the mold's life. After you used, wash them with soap water, let them dry out and keep them in flat, store in a cool place, avoid the heat and for sharp tools. It is best to pour resin in layers for this large coaster mold. If large amounts of resin are mixed at once, it may result in overheating and warp your mold. The chemicals heat up faster when larger amounts of resin are mixed at once and may burn or warp your pouring cup or mold. Specifications: Type: Jewelry Mold Material: Silicone Pattern:Geometric Color:Clear Size More detailed,please see photo Quantity: 18 Pcs Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 7Pcs x Silicone Molds. 10Pcs x Finger Cots 1Pc x Tweezer.