This is a 1.69 oz, 99.98% pure 70% diluted DMSO. After 30+ years of retailing and wholesaling DMSO we have found a roll-on bottle that meets our standards. We are therefore introducing a new product line, the roll-on bottle with the high quality DMSO you have come to expect from us. It is the perfect size, easy to handle and hold even if your grip is not a strong as it used to be. Refillable and perfect for traveling.