NOTE: Gene Serbus 2022: Yalom's "Shoes of Glass, 2" Yalom shows the roller skate in two sizes (3.75" height and 3" height). Mine is 4". She shows the roller skate in two sizes (3.75" height and 3" height). She does not mention if they are found in four sizes. It looks like there are at least three sizes. She states the roller skate is found in amber and blue. I found this one which had some chips removed on the front top rim.