Manufactured with 100% flame retardant polycarbonate, Moulded from clear polycarbonate, Clear cups transform the glow of your tea light candles into a warm glittering flame. Made in the USA! Cost-effective Clear Tea Light Cups instantly bring a premium quality appearance, longer life and greater safety to your Tea Light Candle products. Made in the USA. Non-toxic, recyclable polycarbonate - safe for the environment! Manufactured with UL 94 V-0 or V-2 rated polycarbonate 1 1/2 inch diameter by 3/4 inch deep (37.8 mm by 18.8 mm) More attractive candle light glows right through! Stays cooler - safe to touch Suitable for use with scented candles Candle burning time ranges from 4 to 7 hours depending on quality of wick and wax used Great for all waxes: beeswax, soy, paraffin, palm and vegetable Save time - pour wax directly into the Clear Tea Light Cups!