Hi spanishguitarmusic. It is just the strap, which I got somewhere from e - b a y. If your guitar does not have an endpin, a suction cap is a solution, if you don't want to drill a hole and insert an endpin additionally. I do not use footstool because it does not allow me to keep my knees at the same height, which I think is ergonomic for the spine. Mine, at least - I used to use a footstool for years in distant past, but it tended to cause me pain.
2014 Martin Okenica cedar, modern (H. Hauser I inspired)
2012 Martin Okenica spruce, early romantic (F. R. Lacôte inspired)