I completed the first two strips of each color and had a total of 20; so if it continues to yield the same on next and next two strips light and dark, I will have what I need. Guess since I am from the 'Show Me' state, I am working to see if I am right, because I am cutting them into, then into again...I think that is why I am getting more than I thought. Watching the dark and light comb to be in the right places each time. It goes together really fast. Love it.