Okw numbered dials 0 11 30deg transparent for roundwing knobs okw a 44 13 049 this okw numbered dial 0 11 30 transparent for roundwing knob 135mm has been manufactured with pc ul 94 hb material and can easily be fitted to a 135mm roundwing knob okw a 44 13 049 numbered dial for roundwing knob 135mm 0 11 30 trans scale