Envelope Punch Board.
Now its even easier to create custom envelopes in over 60 different sizes with any size paper. By eliminating the need to trim and measure the paper multiple times, the Envelope Punch Board is the easiest-to-use envelope maker in the industry.
To use, simply select the envelope size, trim the paper once, and follow the grid printed on the board to punch the envelope notches. Finally, score and fold the envelope using the included bone folder, which is conveniently stored on the Envelope Punch Board itself.
For an extra touch, round each corner of the envelope using the punch located on the opposite side of the tool.