These clear plastic bottles come with smooth white fine mist sprayers. The clear PET boston round bottles could be an excellent choice to package products that need to be applied by misting. The sprayers are made of polypropylene and feature smooth collars and clear styrene protective hoods. PET is a great packaging material that is a good barrier to gas and moisture, and also has a good resistance to heat. PET is durable and highly resistant to dilute acids, oils, and alcohols.