Scen Promises The container for this candle set is a glass, which is a fragile product. If you find any damage after receiving the goods, please contact us as soon as possible, we will replace or refund for you. At the same time, we have improved and strengthened our package, you can buy with confidence. TIPS 1.To maximize the burn of your candle, we suggest trimming and maintaining the wick to 1/8. 2.Trimming the wick helps maintain an even burn and helps keep the flame from getting too close to the glass. 3.using for no more than 4 hours at a time to maximize the burn duration. 4.Always use on heat/flame resistant surface and burn within sight. 5.Keep away from things that can catch fire and away from children and pets.