Application: Perfect applying for essential oils,perfume,etc.It allows you to store essential oils,perfume or other liquids,meet your needs of daily care for eyes,faces and body Luxury Caps: The cap outside is made of plated aluminum alloy.Golden colour looks ritzy.Caps and the roll balls are designed pressed when screw tightened.it can prevent any types of leakage. Stainless Steel Roll Ball: The roll balls are made of quanlity stainless steel,which is smooth surface and corrosion resistant. Rich Accessories: 24 labels for marking essential oils' name on bottles, 3 droppers and 1 funnels for filling essential oils into bottles conveniently, 1 bottle opener for removing roller ball from bottle, 1 brush for cleaning roller bottles insde easily and reuse them. Portability : the capacity(10ml) makes it perfect for traveling and it easily fits in your purse. These 10 milliliter roller bottles are made of thick glass.They come with stainless steel roller balls. They are portable and convenience.It's great for essential oils,etc.