Product InformationMaterial: Glass Capacity: 30ml Total height: 72mm/2.83inch Open mouth diameter: 20mm/0.79inch Container bottom diameter: 16mm/0.63inchProduct descriptionThe essential oil sample bottle is made of corrosion-resistant glass, which is thick, smooth and shock-resistant. When you pull the plastic sheet from the top, the bottle will not break. The cobalt blue glass sample bottle protects essential oils from harmful ultraviolet rays and prevents rapid evaporation. And our long-lasting bottles can be reused, you can easily refill them at any time!