Min. Order Reference FOB Price
100 Pieces US$3.96-4.75 / Piece
Product Description
Product Description HOW TO USE FOR EXHALATION: There are 2 exercises, 1 for the exhale (expiratory), and the other for the inhale (inspiratory). You always breathe through your mouth through the Breathe Easy, meaning through the restriction. Exhalation uses diaphragm &abs exercise to push air ...