1. Observe: That is Asian dimension! 2 sizes smaller than the US/UK/Australia/EU dimension! ! 2. If you do not know how to decide onthe scale, please inform me your top and weight. We are going toassist you toselectthe correctdimension! 3. Attributable toguide measurement, the scalemight differ by 1-3 cm. 4. Do not knowmethods to measure?PS: 1 cm = 0.39 inches