These wooden wick soy candles come in a refillable glass jar and are scented with essential oils. The scent throw is more muted than a candle made with fragrance oils. The 4 oz will burn for an average of 20-25 hours and the 8 oz 40 hours.
Bumpy tops and cracks are normal for soy candles, especially if they undergo extreme temperature changes. They will not affect the burning of your candle and will disappear quickly.