DEF TOP Transform {
     translation 0 0.5 0
     children [
        Transform {
           rotation 1 0 0 1.57   
           children [
              Shape {
                 appearance Appearance {
                    material Material {
                       diffuseColor 0.4 0.4 0.4
                    }
                 }
  
  
                 geometry Box {
                    size 1 1e-8 1
                 }
              }
           ] }
     ] } ## end TOP