Product details Brandentair MaterialPE, Plastic ColourBlue Item Weight350 Grams Item Diameter12 Millimetres Color-coded balls in each three chambers prove to be visual incentive to the patient Air ows into single channel, when it passes through the chamber; it raises each of the three balls depending on the ow inhaled per second Connecting tube with 12mm almond connector and mouth piece Can be disassembled into parts for cleaning and disinfection Nonsterile, individually packed in a b.; package contents: 3 ball respiratory exerciser