This is a brand new, unopened urine collection bag for children. I've tried various urine collection packs, and the Atom brand was the easiest to use. It's useful for health checkups, urine tests, and other situations where a urine sample is suddenly needed. It can be used for both boys and girls, so it's good to have on hand. It's also convenient for collecting urine from babies and infants who are still in diapers. With urine volume markings Sterilized