Features: 40 x 25mm premium profiled white aluminium headrail with top-fix brackets and wheeled replaceable truck hooks.The constant transport of the louvres is guaranteed by the precision made aluminium spindle shaft. Wand control operation with built in slip clutch for louvre tilt.127mm/89mm/63mm louvres with enclosed weights or conventional pockets and white stabilising chain. Benefits: Robust with high quality performance, yet remains pleasing to the eye. The compressive truck options satisfy the most demanding of environments whether it be residential or commercial. Options: Face fix brackets; Enclosed weights.