Shiny & Smooth Tray Silicone molds to make your own trays with strip sepcial design to make perfect decorative trays/plates. Premium Quality Silicone Molds for Tray; Finished Tray dimension: 17cm outer diameter with 2cm Height. Widely Application Concrete Mold for Casting Trays & Plates: with shiny and smooth , this silicone plate mold can be widely used for resin, comcrete, jesmonite,ceramic,plaster, raysin and more. The more fine the compound you use, the more smooth the tray be. Silicone Casting Mold is Made of environmentally friendly silicone, oven-safe, and super easy to and clean.