6 Pack - Roll on Glass Bottle - Black 10ml 1/3oz Size for Essential Oil - Empty Aromatherapy Perfume Bottles - Refillable Slim with Cap [Black] These Bottles are ideal for packaging sample or travel sizes of personal care products such as perfumes and Perfume Oils. It comes unassembled for ease of filling. Each bottle holds 10 ml of liquid, or 1/3 Oz. A tight fitting cap keeps your product from leaking. These beautiful glass bottles are a handy way to apply essential oils, blends, and massage oils to the skinsimply roll them on as needed!