Each bottle comes with a long glass dropper, a phenolic cap for long-term storage, and our 65 page detailed User's Guide, sent by e-mail attachment when your peppermint oil ships as an E-book., Peppermint oil is a natural repellent of mice and other rodents, spiders, mosquitos, and other insects. Simple how-to instructions are included in our very detailed User's Guide., Our peppermint oil is 100% pure, therapeutic grade, and so included on the FDA GRAS list, which means it is "generally recognized as safe" to consume in small amounts as a food additive., Peppermint oil is anti-bacterial, anti-viral, and anti-fungal, which makes it an excellent natural all purpose cleaner to help keep your home and kitchen clean, and smelling fresh., If you are unhappy with our product for any reason, we will provide a full refund or replacement, at your request. No explanation necessary. Your satisfaction is our highest priority.