Keepers of the Light Fragrance Keepers, by A Cheerful Giver - Vanilla fragrance (creamy white colored). Superior, strong fragrance that lasts for hours. These are highly scented wax tarts (like candles with no wick) designed to use with wax warmers/tart melters - they infuse a room with their delicious scent, without the danger of an open flame! Each box includes 4 tarts, which will last for hours and hours!