I used an Xacto knife to peel the digits off the sheet and position on the board. Then I pressed it in place. A guide line is very useful. Then I applied polyurethane to the whole project. The sticker color did not run and they are locked in place.My only criticism is the distribution of digits. They provide the same quantity of each digit, but in practice, some are more common. In my case I wanted numbers 1-12, so I needed four 1's, two 2's, and one each of 3-9. So that is potential improvement
Rating: [5 of 5 Stars!]