Empty Roll on Bottles come with a 25mm natural rose quartz roller that glides seamlessly without jamming, providing a gentle, cool physical feel during application. Oil Roller Bottles are constructed with glass, natural rose quartz, and a premium gold cap, ensuring reliable performance for daily use. Amber glass bottle body of Glass Roller Bottles contents from light exposure, slowing oxidation to help preserve the stability of liquid ingredients. Refillable Roller Ball Applicator features a chic gradient slim-waist design with a gold cap, a compact and stylish option for various skincare liquid refills. Empty Rollerball Bottles for Oil are easy to clean and refill, ideal for storing essential oils, facial serums, and custom liquid skincare blends.