DIY fun: the coaster resin mould kit is made of high quality silicone, which is flexible and easy to release. It is quite durable and not easy to deform.CREATIVE PROJECTS - Our 4 piece coaster resin molds are compatible with most resins or other casting materials. You can add fillers such as dried flowers to the silicone moulds.HIGH QUALITY SILICONE - The silicone coaster mold set is soft and has excellent elasticity. It is easy to release and not easy to deform. It can be cleaned with soap and water.Easy to use: silicone resin casting molds are easy to use. Once the resin is fully cured, you can simply twist it and remove your finished product from the mould.Widely used: coasters from the silicone coaster mold kit can be placed on your desk at home or in the office. They protect your desktop from heat damage.The silicone coaster mould kit is perfect for making unique and great coasters for you and your family. You can share it with your children. So you can make crafts together. Your kids will love it! 1. Compatible with most resins, suitable for making special coasters. 2. Quality silicone, use it comfortably. 3. Wonderful decoration for your home. Specifications: Material: silicone Size: base mold size: 12.5 * 10.4 * 2.2cm / 4.92 * 4.09 * 0.87 inch Finished size: 12*10*2CM/4.72*3.94*0.79IN Coaster size: 21.5 x 21.5 x 0.9 cm / 8.46 x 8.46 x 0.35 inches Finished size: 9.9 x 9.9 x 0.8 cm / 3.9 x 3.9 x 0.31 inches 1 x resin mould