Features:Convenient Size Options: Available in both 30ml and 50ml sizes, these roller ball bottles are suitable for various quantities of essential-oils, accommodating different usage needs and preferences.Roller Ball Design: Equipped with a roller ball applicator, these bottles allow for easy and mess-free application of essential-oils, ensuring precise and controlled distribution.Portable and Travel-Friendly: Compact and lightweight, these bottles are ideal for on-the-go use, fitting easily into purses, pockets, or travel kits for convenient access to essential-oils wherever you go.Quality Construction: Crafted from high-quality glass materials, these bottles are sturdy and reliable, protecting the integrity of essential-oils and ensuring long-lasting use.Versatile Usage: Suitable for a variety of essential-oils, perfumes, and aromatherapys blends, these roller ball bottles are versatile and can be used for person use, gifts, or DIY projects.Notice:1.Actual color may be slightly different from the image due to different light effect2.Please allow 1-3cm deviation due to manual measurement Description:Material: glassCapacity: 30ml/50mlSize: 9.9*4*4cm/11.7*4.5*4.5cm