Our special diamond core cutters have taken our natural stones and shaped them them into the convenient and conventional THAI crystal deodorant stick. At 4.25 ounces, it will last one year and is the safest, healthiest alternative to mainstream antiperspirants. All THAI products are aluminum-free, hypoallergenic, and contain no oils, emulsifiers, propyls, parabens, or other harmful chemicals, promising 24-hour odor protection which works with your body. With over 15 million pieces sold, what haven't you joined the trend?