Description Designed to fit 4-ounce glass bottles only. The eyedropper is incorporated into a threaded cap which can be screwed onto the top of the bottle. All 4-ounce size LorAnn Super Strength Flavoring Oils and Essential Oils are packaged in glass bottles. Note that all 4-ounce Fragrance Oils are packaged in plastic bottles. Please note: Exposure to certain super-strength flavors and essential oils may cause the rubber to degrade. For this reason, we do not recommend long-term storage of the bottles with the dropper tops as the cap. 1 per package
