Little Windows Brilliant Resin Silicone Cabochons Mold for Resin or Polyclay Use for resin, polymer clay, soap, candles, baking or candy making Make any size casting - 1/4" up to 2", 6 different cavity sizes, multiples for each Clear, quality silicone - see your work in progress Super shiny finish - no polishing needed, no mold release needed Flexible, heat and cold resistant (-40f up to 440f/230c)