upright for lyon spinal orthosis or similar 4 points 3 points garchois Lock and valve 1 nut retaining tool 1S721 3 180 1 nut retaining tool for tightening (D) The assembly is sealed by a joint Item number Product Length Upright section Holes diameter Perforation type Material Packaging 4C15 Posterior upright for child 500mm 30x4mm 5mm Simple Light alloy x1 4C17 Posterior upright for teenager 600mm 30x4mm 5mm Simple Light alloy x1 4C16 Anterior upright for child 500mm 30x4mm 5mm Mixed Light alloy x1 4C18 Anterior for teenager 600mm 30x4mm 5mm Mixed Light alloy x1 4C41 Posterior upright for child 500mm 30x4mm 5mm Double Light alloy x1 4C42 Posterior for teenager 600mm 30x4mm 5mm Double Light alloy x1