Used only once. Sterilized. Comes with box and instructions. Features a hand-held suction tank with a silicone tip and a special structure that prevents nasal mucus from flowing back. - Brand: CHINAVI - Product Name: Hand-held Suction Tank - Features: Easy to use with silicone tip - Structure: Special structure prevents nasal mucus from flowing into the suction tube - How to Use: Easy to attach - Ranking: #1 in the Health Care category Thank you for viewing.