Place the tempered chocolate onto the plastic sheet and spread it out to a thickness of 1mm deep. Leave it to cool, but before it has completely hardened, cut it into fine triangles. Place the baking paper on top of it. Using the roller, wrap the sheet around it into a coil, then leave for 1 hour in a cool place (12 - 18°C) until it has hardened.
Remove the paper from the strips of chocolate.
Use the Triangle Curves as decorations on cakes.