Narwhal WD 420. Model of a rigid inflatable rib with bed and motor for printing in 3D.The 3d model has the following dimensions: 20 x 10 x 6 cm.It has a complete .STL file and also an .STL file for each component: wheel, bed, motor and inflatable boat to make it easier for printing in 3D.The complete file is also in .OBJ file and exported in Autodesk Inventor.