Used for six months in a dance class. The soles are clean. EU size 29, so it's likely 18.1-18.5 cm. My 19 cm grandchild said, "They're too tight now," so for reference. The Velcro part is weak, so I've added extra at home, but it still sticks even if you take it off. For those who understand that these are used items. Will be shipped in a Yu-Packet Plus box. #19cm