So I’ve had a couple of requests for the measurements for this box in inches, so I worked it out and have checked by making a sample and the result is seen in Pacific point on the left.   Slightly smaller but still holds a single Ferrero.

So the instructions for my original post are found HERE and the new dimensions are

Card 6 X 2-1/2 inches

score short edge at 1/2 and 2 inches

Score long at 2 1/4 and 3-3/4

DSP 6 X 1-1/2 inches

Score long at 2-1/4  and 3-3/4

Cut a triangle 1-1/2 inches wide by 1-1/8 inches high