#VRML V2.0 utf8  
Transform { 
children  
Shape{ appearance Appearance { material Material {}}  
geometry Extrusion{  
crossSection [ -1 0, -0.7 -0.7, 0 -1, 0.7 -0.7, 1 0, 0.7 0.7, 0 1, -0.7 0.7, -1 0]  
spine [0 -1 0 , 0 1 0 ] 
orientation[0 1 0 0, 0 1 0 3.14] 
}  
} 
}