Panel Line Guide 2 Straight is for Straight Lines, Panel Line Guide 2 Curved is for Triangles…I mean Curved Lines. You get 1 sheet, but if you count the inside and outside radii, it has 28 different types from 5mm to 86mm, which are scored and ready to cut to length. Ever tried to bend regular guide tape into a perfect radius? It’s nearly impossible, and majorly time consuming. Save yourself some pain and give these guys a shot.