Contain All Natural Ingredients Do Not Support Bacterial Growth Preservative Free Portable, and Come in Convenient, Resealable, Recyclable Packages Long-Lasting (2 to 3 Months)Perfect for health care professionals, homemakers, cooks, mothers, carpenters, construction workers, mechanics, potters, artists, gardeners, beauticians, restaurant workers, knitters, spinners, day care and nursery workers.