For those who suffer from nausea most commonly caused by morning sickness (pregnancy), motion sickness/travel, anesthesia, or chemotherapy. Waterproof. Adjustable. Reusable. The Psi Bands Story: Created by two fashion-forward moms-to-be looking for a drug-free way to treat their ongoing morning sickness. They discovered the benefits of wrist acupressure to relieve their nausea and vomiting. Psi Bands are drug-free, comfortable, adjustable, waterproof, and reusable. Wearing is believing. Breathe a Psi of relief! Size: One size fits all. www.psibands.com. CE Listed.