[10.8 millimeter - 13.3 millimeter]
[7.8 millimeter - 9.5 millimeter]
[12 millimeter - 14.5 millimeter]
[10.3 millimeter - 12.8 millimeter]
360 degree stepless design with no gaps on inner surface. Narrow 7 millimeter wide band provides concentrated seal compression. Size range is 7.8 to 9.5 millimeter.