Medical-grade material: PE material, tough, unbreakable and non-leaking.This barf bag has a big opening rim that perfectly fits the mouth area to prevent spillage. Safety Seals: This vomit bag has a closure system, twisting the bag to snap into the notched ring seals the odor and also prevents leakage. Lightweight and small size: You can put it in your pocket or backpack in case you need it. Can also be used as a garbage bag, or umbrella bag, etc. Emesis Measurement: Graduated Markings to Measure Oz And CC\/ML, large capacity holds more than 1000 cc\/ml. Effective Puke Bags for Multi-Occasions: Perfect for car travel, drivers, pregnant woman, motion sickness passengers, drunk passengers and health conditions patients who need to keep a vomit bag handy.