This economically priced model of the human lungs is a highly detailed good quality classroom demonstration tool.Mounted on a baseDimensions: 125mm x 125mm x 300mmIncludes key cardThe models parts include:2 part removeable larynx wind pipe with bronchial tree 2 part removeable heart subclavian artery & vein vena cava aorta pulmonary artery oesophagus 2 lungs with removeable front halvesDiaphragm