These are for Right hand drive only cars with 1mm thicker and 2mm wider stainless arm, plus a stronger spring to keep your blades firmly pushed on the screen. Beware some Minis have right hand park, and some left hand park (as viewed from the driver's seat). These are left hand park only. These will only accept the GWB220 11" blade so work only with MkIII and later cars. Make sure your wiper motor and wheel boxes are in good condition.