Min. Order Reference FOB Price
500 Pieces US$1.40-1.90 / Piece
Product Description
JM1820 Breathing Exerciser Using an three balls spirometer is important because it can help to: Material:Medical PVC,ABS,PP,PE; Open your airways and make it easier for you to breathe. Prevent a buildup of fluid and mucus in your lungs. Prevent a collapse of one or both your lungs. ...