Package Includes : 16pcs 30ml/1oz essential oil roller bottles, 1pc funnel, 1pc reusable dropper, 300pcs labels, sufficient quantity and complete combination to meet your use and replacement needs. Size Reference : 30ml/1oz roller glass bottle total height approx. 100mm/3.94 inch, diameter approx. 31.5mm/1.24 inch, inner diameter 16mm/0.63 inch; Bottle: height approx. 81mm/3.2 inch, please refer to image 2. Premium Quality : The tumbler bottle is made of high quality clear glass, reliable, compact and delicate, the roller ball is made of safe plastic, silky smooth and non-jamming, can be used for a long time. Easy to Use : The clear essential oil roller bottle can be easily removed and filled with the help of the matching bottle opener, and can be refilled with liquid at any time. To use, simply open the white cap to apply. Easy to Carry : The essential oil rollerball bottle can be carried in your make-up bag or pocket, and can be used to dilute or mix essential oils, perfumes and other liquids. Not easy to leak or spill, it is the first choice for travelling.