Thank you for viewing. This is an inline skate, CCM RBZ, for sale. I am selling it because I haven't used it. I polished off some of the dirt, but I couldn't remove it completely. The shoelaces have been replaced with new ones. The size is 4. I'm not sure what that is in centimeters. How about using it for practice? If you have any questions, please ask in the comments. No returns accepted. Thank you.