United States  Size 4 = size 34=22cm
United States  Size 5 = size 35=22.5cm
United States  Size 6 = size 36=23cm
United States  Size 7= size 37=23.5cm
United States  Size 8 = size 38=24cm
United States  Size 9 = size 39=24.5cm
United States  Size 10 = size40=25cm

shoes  heel  3cm  4.5cm  8cm

flat  shoes

3 cm with high display:

4.5 cm with high display:

8 cm with high display: