Colorful fire packets are environmentally friendly and produce no smoke, odor or fumes. There is nothing quite like a brilliant display of colored flames to enhance a fire. You will begin to see fire in a new light. Sit back and enjoy the colorful fire. MORE COLORS! Easy to use. Simply toss 1 - 2 unopened colorful fire packets onto a high point of an established indoor/ outdoor wood burning fire. Colorful fire packets work instantly and last 30+ minutes.