This strop is what i give to customers who regularly send or bring me a CRK knife for sharpening and some TLC, so they can maintain & keep the appearance of their new edge themselves for some time at home.
It's a new & cut-to-size piece of clean MDF coated with a thin layer of 1.0 micron (+/- 14000 grit) mono-diamond compound made by 3M, and i put self-adhesive rubber bumpers (also made by 3M) on the bottom.
These make the strop non-slip plus they elevate the working surface a bit which makes the strop more convenient to use on a table (more room for your hands)
The Nyala used as a prop for the pictures was recently reprofiled (from 35-40 degrees inclusive to an even 30 degrees inclusive) & sharpened (with 15 micron diamond compound on a Paper Wheel) and will be picked up by it's owner somewhere in the coming weeks.
BTW: it's main purpose is to cut oranges, about 5 each day,