These Clear Polycarbonate Tea Light Cupsare manufactured with 100% flame retardant polycarbonate and will transfer the glow of your tea light candle into a warm glittering aura.Features:1. Non-toxic, recyclable polycarbonate – safe for the environment2. Manufactured with UL 94 V-O rated polycarbonate3. 37.8mm diameter x 18.8mm deep – Holds approx 25mls4. Candle glows through the cup5. Stay cooler – safe to touch6. Burn time ranges from 4-6 hours depending on wick wax used7. Great for all waxes: soy, beeswax, paraffin, palm vegetable