These protractors are used to measure hard-to-get “inner” angles, where a normal flat protractor won’t be able to reach.
I was initially asked to make these for cosmetic surgery work… but they probably have other uses as well.
They are made from brushed, stainless steel, with adjustable allen-key bolts.
They come with a laser-cut, magnet-equipped case. The dark hardboard ones come as standard, but other options are available as well.
For an extra $10 I can put your logo on the case – if you send me a file, I’ll send back a mockup image.