Material: Silicone Size: 115*105*16mm Package Includes:2x Silicone Mold 1.Colorful Neon Holo Effect - These resin molds silicone have a micro-sculpted surface finish, light bounces off the lines like a prism, creating a radium effect. Our resin epoxy molds have two different laser patterns, with different angles, showing different colors and light spots. It is better to use a darker color resin such as black. 2.Points for Attention - 1. Never top coat a holo resin piece, this will make the coaster lose its halo effect. 2.It is better to use resin that has been colored darker, such as black-colored resin. 3.Torch or heat gun are not recommended as they may ruin the coaster resin molds lubricity causing it to stick to your pieces. 3.Easy to Use and Demold - Made of silicone, our silicone coaster molds for resin for resin is flexible, reusable, and non-toxic, safe and tasteless, easy to clean with running water and warm soapy water. They feature a glossy interior to ensure wonderful finishes for your coasters. 4.Coaster Molds - Package include 2 Pack Round Silicone Molds for Resin, the diameter of the mold is 105mm at the top, 115mm at the bottom and the height is 16mm. The thick resin coaster prevents heat transfer to surfaces underneath a steaming cup of coffee or tea protect furniture. 5. Note - You can use release agents or mild soapy water to demold your coasters from the glossy interior surface.