BuggerOff lamps have broad bases, are made of high quality P.E.T. The chimneys fit well and have stainless steel wick sustainers. Our lamps will not fall over easily, the chimneys will not topple off and the high quality wicks will self prime. The bottles will not misshape or dent in heat. They will not spill as the caps seal tightly and the quality of the bottle makes the lamp a decorative and functional item.