This roll bar is manufactured from large 3" (76mm) diameter hand polished stainless steel tubing with a mirror finish. It consists of a single hoop behind the cab of the vehicle that bolts through the top of your Hilux bed rail.
From this single hoop two stays come back and again fixes to the bed rail allowing full use/load capacity of the bed. There is only the roll'n'lock type roller tonneau cover that will work with these roll bars.
If you wish to mount spot lights to your Hilux roll bar then there is the option of the light mounting brackets (see options) Roll Bars are sometimes referred to as pick up sports bars, pick up styling bars, pick up roller bars.
Toyota Hilux Accessories At 4x4AT.com