Refillable Cosmetic Roller Bottles Set: Enjoy the convenience of these 10ml glass roller bottles that come equipped with stainless steel balls, making them perfect for essential oils, perfumes, and other liquids. | Leak Prevention and Travel Ready: Thanks to the screw thread finish bottle mouth and plated aluminum alloy cap, these roller bottles keep your liquid precious cargo safe and secure while you're on the go. | Essential Oil Bottles That Protect Against Harmful Light: These roller bottles are designed to protect your essential oils from the damaging effects of light, making them a perfect choice for daily use or traveling. | Easy to Use and Comes With Everything You Need: This set of rollerball bottles includes droppers, funnels, and a bottle opener tool, making it easy to refill your bottles when they're running low. | Perfect for Your Daily Care Routine: These oil roller bottles for essential oils are the perfect size for daily use and will make your self-care routine a breeze. Plus, they are reusable and environmentally friendly.