Fantastic Punch Boards from We R Memory Keepers 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 & measure the paper multiple times the Envelope Punch Board is the easiesttouse envelope maker in the industry. To use simply select the envelope size trim the paper once & follow the grid printed on the board to punch the envelope notches. Finally score & fold the envelope using the included.. .