Product Measurement:

CN36: US: US6", Ball Girth: 8.3", Foot Length: 9.1"

CN37: US: US6.5", Ball Girth: 8.5", Foot Length: 9.3"

CN38: US: US7", Ball Girth: 8.6", Foot Length: 9.4"

CN39: US: US7.5", Ball Girth: 8.7", Foot Length: 9.6"

CN40: US: US8", Ball Girth: 8.9", Foot Length: 9.8"

CN41: US: US8.5", Ball Girth: 9.0", Foot Length: 10.0"

CN42: US: US9.5", Ball Girth: 9.2", Foot Length: 10.2"

CN43: US: US10", Ball Girth: 9.3", Foot Length: 10.4"

This data was obtained from manually measuring the product, it may be off by 1-2 IN