Nag Champa is a very popular incense fragrance which is an exotic blend of florals, spices and resins from India. I have relaunched this on my website due to it being so popular. The total pack of melts will last between 20 - 25 hours but can last longer. Just place one cube in your burner at a time. The colour of the melt may vary slightly but the fragrance will not change this is due to the them being handmade.