Features:
Using the human lungs model anatomy to do experiments in person, people can better understand and master the relevant theoretical knowledge and improve the efficiency and effect of learning.
Our lung function model is made of simple materials and is very easy to operate. For example, the common balloon and straw model can intuitively simulate the human breathing process.

Specifications:
Color: as pictures show
Size:
Straw: 8.27 x 0.24 inches/ 210 x 6 mm
Balloon: 12 inch
Nose: 2.76 x 1.38 inches/ 7 x 3.5 cm
Mouth: 2.36 x 1.57 inches/ 6 x 4 cm
Lung vessels: 5.79 x 5.91 inches/ 14.7 x 15 cm

Package includes:
96 x Straw
192 x Balloon
48 Sets of nose and mouth illustration cards
48 Sets of lung blood vessel illustration cards
6 Rolls of tape

Notes:
Manual measurement, please allow slight errors on size.
The color may exist a slight difference due to different screen displays.