GELHOOP V16 22.5 cm I am selling these because I bought them elsewhere to try them out, but they didn't fit. The previous seller said their daughter used them for about a year. I don't know how they were home cleaned, but they have stains as shown in the photos, but there is no problem with wearing them. Please refrain from purchasing if you are concerned about this. Please take a close look at the photos as there is a lot of dirt.