Polycarbonate tea light cup.
Dimensions: 38mm diameter by 19mm high.
Burn time ~4 hours.
Make sure to burn your candles in a tea light holder.
The cyps can be re-used 2 to 3 times.
To re-use, the best is leave any left-over was remaining from the previous burn in the cup. They are fairly fragile and will break if too much pressure is applied. Just remove the metal sustainer from the wick and make sure the base of the cup is not split.