The change of knife blocks requires a lot of tact. Especially the plugging of the new knife blocks is complicated. I have 2 places of residence and thus 2 Shaver F5790. In both after less than a year the shaving foil is damaged. In both I changed blades and shaving foil .... and both the rear knife block replaces with when the foil is removed -zwecks säubern-. Apart from this, it is sad that the shaving foils not have long life (see also reviews razor), it is even sadder to choose such an attachment! Because after the change but shave the razor again good, there are 2 stars.
