The Flow single rail stairlift is the market leader when it comes to curved stairlifts and is the smartest lift of its type. Flow is the only stairlift on the market which is capable of swivelling during the ride both up and down the stairs. This unique and patented feature makes the Flow stairlift capable of fitting most staircases, straight, around corners or even spiral This compact stairlift looks simple on the outside but the technology on the inside is extremely ingenious. The angle of the staircase can vary from -70° up to 70°.