the crystals are not fire hazard but the flowers maybe. So only burn this type of candles under yr eyes, never leave unattended. Anyway they seem to serve certain purpose like meditation, spell casting, or maybe tarot spread, ect. They are pretty :))
a1 dont put the bell of the snuffer into the wax, hover it and slowly lift after all your not killing a bug or putting a cig out you want to choke the candle out not stomp it out, or two just use a wick dipper and put it into the wax to seal it off in the first place to choke the oxygen out and then lift it back up not smokey snuffing needed.