4 oz Clear PET Cosmo Round Bottle with 24-410 neck finish. The Cosmo Round, also known as a bullet or imperial round, is identified by its tall, slender shape and steep rounded shoulders.
PET is of the polyester family and has high clarity, good chemical resistance, high impact resistance, and medium rigidity. PET is also light-weight and is used for products containing essential oils. Avoid using PET containers to store products that contain essential oils greater than 5% or fragrance oils greater than 15%.