has been attached to the base section 2 as part of the manufacturing process the mounting block can no longer be adjusted since it is not removable also while the simple tooth and aperture arrangement are depicted in fig2 locking devices that can be used are not limited thereto rather any mechanism that can be used to hold the two halves of the non detachable holding section 3 to the base unit section 2 is appropriate while the double hinge arrangement 35 a 35 b is used with mounting block 25 this is not the only method that can be used to hinge the two pivoting halves 31 a 31 b of the non detachable holding section 3 for example only a single pin or pivot on each side of the two halves of the holding section might be used to hold the holding section to the base section 2 the sidewalls 36 a 36 b would have to be arranged to slide over each other as the two halves rotated around two common pivot pins this is a much more awkward arrangement than that depicted in the drawings but can still be used within the basic concept of the present invention all that matters is that the holding section 3 not be detachable from base section 2 other pivot structures can also be used the pivot structure can be a non removable metallic pin or plastic structure the sidewalls 36 a 36 b can be configured as necessary so that the pivoting can be done in the most expeditious manner while the examples depicted in the drawings have been square in shape with a mounting surface and the possibility of a drilling pattern the.