I'm not tying anything down but my tools and A spare bottle of fuel and/or maybe a small bag with this. I have no doubt it would secure a helmet or a chainsaw or any other awkward load.
I made it out of two lengths of 2" industrial adhesive rubber tape with another length of 3/4" tape sandwiched between them. I'm not sure where you could buy it, other than an electrical supply house.I think it might be expensive if you can find it.
An electrician buddy saved it from the landfill. It was way out of date, (1986) and the first few layers to spool off the roll were dried out. The buckles were cheap and came from the hardware store (ACE).