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Widths in cm: 9.5 / 10.5 / 11.5 / 12.5 / 13.5 / 14.5 cmWidths in inch: 3 3/4" / 4 1/8" / 4 1/2" / 5” / 5 1/4” / 5 3/4”Ring-Ø: 50 mm - 2"Thickness: 12 mm