Mystical Fire Flame Colorant Vibrant Long-Lasting Pulsating Flame Color Changer for Indoor or Outdoor Use 0.882 oz Packets 10 Pack DROP UNOPENED: on fire watch the vibrant colors. WINTER, SPRING, SUMMER, FALL: on any wood fire. VIBRANT COLORS: green, blue, yellow, and purple. GREAT INDOOR/ OUTDOOR FUN: campfires, fireplaces. USE 3-5 PACKETS: for best results.