Protect your oils: The essential oil bottle is made of quality corrosion-resistant glass which makes it durable and anti-shock. Its amber color thick glass can protect essential oil against harmful UV rays from sunlight and save it from quick volatilization. Ideal for your essential oil recipes. Leak-proof design: This well-made stainless steel roller balls roll on your skin smoothly and glide easily without sticking. The roller tips are nicely tight for no spilling, screw thread bottleneck design prevents any sort of leakage. Portable for carrying: 10ml glass roller bottles are perfect for essential oils, perfume oils, coconut oils, etc. The tiny size makes it great for traveling and easily fits in your purse. Bring your favorite scents with you on vacation or daily care for eyes, face and body. Easy to fill & assemble: You can mix the perfume oils by a dropper to meet your needs, and use the opener to take the lids off in a breeze. Great for your oil mixtures, different oil blends. What you get: Come with a pack of 48 rollerball bottles, 10 extra roller balls top for spare, 4 droppers for dispense liquids, 4 openers for rollerball opening, 48 stickers to mark and classify your essential oil treatment. Make your own pre-diluted roll-ons with our Amber Glass Roll-On Bottles. These 10 ml roll-on bottles are the perfect size to make it easy to take your roll-ons with you. This pack contains 12 roller bottles allowing you to make the roll-ons of your choice using your favorite Plant Therapy Essential Oils and Carrier Oil. Put it in your purse, your pocket, or in a desk drawer at work. This small bottle will not take up much room, but will have your oils ready to use whenever you need it. The amber glass protects and preserves your oils against outside elements and damaging sunlight. Easy to use and convenient packaging makes it easy to take your pre-diluted roll-ons anywhere you go and be ready to use!