Great concept, but do not work for steep roofs or some N scale roofs
These are neat and I am using them for sure, but potential purchasers should be aware that they do not work when there is not a lot of roof surface area (as is often the case with smaller N scale roofs). Also, this tool will not work on 'steep angle' roofs, like those seen on some German kits. The angle simply will not go 'tight' enough to fit properly.
