Features A Rigid system which aids bone fusion and reduce the rate of pseudoarthrosis. Plates has been designed from one whole to five holes for the lumbo-sacral spine at one, two, three and four levels. Adjustment to the anatomy of the lumbo-sacral spine. Low profile. Titanium alloy (Ti 6AL-4VELI). The screw and plate design have special mechanism offering stability between them when the plate is placed and locked over the screw.