A good chance it is a Makita genuine article; quality is as good if not better than the original supplied with the vacuum.
Black Nylon Webbing Camping Strapping 10 Yards Length 1 inch Width Lashing Strap
08 June 2017
Tape, not webbing
i'd call this material "tape" not webbing. The photo on eBay makes it look like webbing but it is quite thin material almost like cloth. Webbing is thicker material.
the actual diameter of the 20m roll, assuming there is 20m there, is about 90mm.
a webbing roll of 20m is usually about 200mm so that gives you an idea of how thin the material is.
the price is cheap enough for what it is; but i wanted webbing, not black cloth tape.