Premium Quality: Our Roller Bottles are made from quality amber glass that effectively protects your essential oils against UV rays, ensuring their potency Leak Proof Design: These bottles come with a stainless steel roller that seals reliably to prevent any leakage. Ensure that the essential oils do not cause a mess Convenient Size: The compact 5 ml size makes these essential oil roller bottles perfect for both home and travel use. Easily carry your favorite essential oils with you wherever you go, so you can always enjoy their invigorating benefits Easy Filling: Our 5 ml sample vials that makes filling them a breeze. No more struggling or wasting precious oils, simply use the included tool to neatly pour your desired amount into each bottle DIY Experience: These roller bottles are designed for essential oil lovers and offer a DIY experience. You can make your own personalized essential oil blends