Stolspeed VGs have been completely redesigned from all other vortex generators on the market to be much more user-friendly and better looking, while still retaining the aerodynamic effectiveness that vortex generators are renowned for.  See Design. 
 
Stolspeed VGs have a very slim rounded fin to give them good flexibility, and a rounded, tapered base that ‘flows’ into the wing surface.   They really do look like they’re meant to be a part of the wing rather than a ‘stick-on’.  In clear material they’re almost invisible.
 
Brush your hand over Stolspeed VGs and you can feel the flexibility. 
       

               “.....like stiff resilient feathers.....” 

 

Other vortex generators are sharp, angular and rigid, and are a real nuisance when refuelling, washing, or covering wings – you wouldn’t dare brush your hand over them!