TEST AND ADJUST
The designers are clear that you should first test-fit the BOG OUT in the safety of your own front yard. This is because of the variabilities in rim profile, tyre size and brake design.
The BOG OUT will fit on tyres that have a tyre width of between 165 and 345mm as the knots have to be on the tyre wall for it to work (and not slip off), which is fine as this covers most tyre sizes. Of note however, is that Method 1 as shown on the packaging will suit 85 per cent of vehicle makes and models whilst Method 2 can be utilised on all makes and models. This is because of the design and fitting of brake components.
So unless you want to be stranded somewhere with a vehicle that has been recovered but now has no brakes, it pays to test and adjust in the safety of your own home first.