Made of 100% flame retardant polycarbonate. Allows the flame to pass through the sides as the candle burns down and produces a beautiful warm glowing effect. • Non toxic• Flame Resistant • 1 1/2 inch diameter and 3/4 inch deep• Nicer looking than traditional metal cups• Cooler to the touch• Burn times vary between 4-6 hours in these cups and depend upon the wax type and wick type used• Works great with scented candles• Save time from pouring into molds and pour your candles directly into these clear cups• You can use these with all types of waxes from soy, paraffin, palm, vegetable and even beeswax! This listing is for 1000 cups, if you have any questions or would like to order more in bulk feel free to message us. Being that this is a heavy item, some shipping costs may apply.