The CSL500 Helix Stair Lift from Harmar is suitable for curved stairs. It has a narrow profile that mounts closer to the wall, with tighter bends. It mounts both inside and outside the stairs, and virtually fits on any staircase. It can easily handle everything from spirals to sharp angles.

For more details, please visit: http://www.dayelevator.com/stair-lifts/harmar/csl500-helix-curved-stair-lift/