Multi-speed strobe discs allow convenient and accurate speed setting of turntables.
The 100mm versions are available as two speed, three speed and four speed variants on a single A4 sheet (American letter paper in the case of 60Hz).
The 7" version has 78rpm, 45rpm and 33.33rpm speeds and prints on a single sheet of A4 (American letter paper in the case of 60Hz).
100mm 50Hz multi-speed strobe discs may be downloaded here
100mm 60Hz multi-speed strobe discs may be downloaded here
7" 50Hz multi-speed strobe discs may be downloaded here
7" 60Hz multi-speed strobe discs may be downloaded here