**Important notice about tea lights made in clear cup containers - Don't settle for inferior plastic cups that may easily melt or leak through! Our tea light cups are certified to be manufactured using only 100% clear, flame retardant polycarbonate, widely accepted as the safest polymer resin available for this application. Polycarbonate is a lightweight, transparent polymer which maintains a very high melt point and is practically impossible to shatter. Country Light Candle Company encourages you to verify that your candle containers are not manufactured using Polystyrene, PVC (vinyl), Clear PET (Polyester) or Acrylic as these materials are not safe for use as candle containers. With any candle container, improper use (enclosing in a too tight fitting holder or burning multiple candles close together) can cause the cup to soften and change shape.