Length 60 mm., Inner diameter 28 mm. and outside diameter 30.3 mm.
For spirometry equipment Peak 10 (Peak flow), Sibelmed.
For spirometry equipment Alpha, Vitalograph brand. Single-use mouthpiece for spirometry. Adapter for spirometry tests.
Material: White spiral cardboard with non-toxic glue.
Characteristics: Single-use device. Do not reuse to avoid contagion.