The Happi Tummi was invented out of necessity and has been proven to provide nearly instant relief for infants with colic and stomach aches. The Happi Tummi consists of a waistband and herbal pouch containing lavender, chamomile, lemon grass, peppermint, spearmint, wheat and flax seed. When heated for 15 to 20 seconds, the herbs are activated to release healing properties which provide almost immediate relief of most common stomach ailments. The waistband is adjustable with velcro straps, easy to clean, soft for baby's comfort, and available in three colors pink, blue, and green. A tried-and-true remedy that's been passed down through generations, this all-natural wrap is filled with an aromatic blend of herbs lavender, chamomile, lemongrass which can help relieve colic and other tummy troubles. Place in the microwave and heat for 20 seconds, then place around your baby's tummy. (Always test on the inside of your arm first to prevent burns). Happi Tummi is the only pediatrician recommended colic relief waistband that naturally relieves colic and gas pains in moments. The heat activated 100% herbal formulation transfers with the baby's own body heat bringing baby relief within moments and it is ready to use in 15-20 seconds.