These 10ml blue glass roller bottles are the perfect solution for your essential oil blends, perfumes, and other liquid creations. Each bottle is constructed from robust, non-coated cobalt glass, which not only gives it a classic, apothecary aesthetic but also protects the contents from UV light, preserving their potency and shelf life. At the heart of these bottles is a high-quality stainless steel roller ball, designed to deliver a smooth, leak-proof application every time. The metal roller offers a cooling sensation to the skin, making it perfect for applying therapeutic oils. Each bottle comes assembled and pre-labeled for your convenience. Each case contains 12 bottles