The Roll On Glass bottle is made of corrosionresistant glass which makes it thick smooth and shockproof This roll on bottle protects essential oils perfume oils or other liquids in it against harmful UV rays to save it from quick volatilization Stainless Steel Roll Balls the roll balls are made of Stainless steel which is corrosion resistant and wellmade The tightness prevents any sort of leakage The Builtin Gaskets for our roller ball part to prevent large amounts of oil come out and achieve a leakage proof function Comes with a pack of 6 10ml per bottle The capacity allows you to store Synthesis Oil Natural essential oil essence perfume or other liquids meet your needs of daily care for eyes faces and body The packaging makes it perfect for travelling and it easily fits in your purse SAFELONG LASTINGAnti UV The amber glass rollon bottles protects essential oil against harmful UV rays to save it from quick volatilization Our long lasting bottles can be reusable you can easily refill those back any time