Fits glow engines well however cant high rpm,s better choose is HK Nylon Spinner with Alloy Back plate.Nice spinner, well made and resistant.
I used it on a 8mm motor axis.material quality is very good .. very interesting performance ... performance is very interesting .. I am happy to have it .. munkin you need to have stuff like this .. you should try it ..Backplate has some thickness, but that doesn't have to be a downside. Not a bad spinner for the price! Easily painted over.