Item no.:LNS-A3, 1pc/polybag/box,50pcs/ctn, box size:15*9.5*7.5cm, Carton size:54*31*39.5cm, G.W/N.W: 7.0/8.5kgs Product name:Lung exerciser,Respiratory Exerciser,Incentive Spirometer1.It hepls the partent to recover normal respiration after a chest ot abdominal surgery.2.It encourage deep and prolonged inspiration. Lung exerciser,Respiratory Exerciser,Incentive Spirmeter