If the measurement is 11" (28cm) or less you require a Korrector™ with a 140 code. If the measurement is 11.5" (29.5) or more you require a cloth with a 165 code. 

For further guidence on sizing please click on the link below:

http://www.firstthought.co.uk/Korrector/korrectorstyleandsize%20.htm

Please note that due to the danger of transfer of infections/disease you cannot return a Korrector if it has any evidence of use i.e grease and hair .

Korrector 140 £125.00

Korrector 165 £125.00