50 pages of 20# paper book binding block

If you are interested in doing your own book binding this is a very simple tool to be used along with a bone folder tool to crease your covers. This is .2" x 8.5" x 30 mm tall. I found that 50 sheets of 20# paper will come to the .2" thickness. You could always scale the block to meet your needs depending on the thickness of your pages.