Purchased in promo 39.90 based on positive ratings out of the hairdresser after shoe 9mm N So I really have not had the opportunity of trying to share with equalizing shoe 20mm but very complete article. I do not believe the detail that if she weighs 235 gr easy disassembly by following the advice of bisounours but adding a head of grease on the contacts hairpin springs I really do not understand negative reviews
