My Website: https://www.MakeCookFix.com
Basic dimensions: base - 18", upright arms - 16", spacer at bottom of arms - 1.5" square, pads for the top of the arms - mine are about 1", but you can do whatever you think is best.
I'm beginning to work with leather and needed this to help make stitching a bit easier.
Here is the more detailed video how to make these by Harry Rogers: https://goo.gl/KcsOgJ
/////////////////////////////////
Follow me on FACEBOOK:
https://goo.gl/dd7ABY