Artero brand Nº 7f. Cutting height: 3mm. Compatible for X-Tron arterter models. Artero Faster. Artero Energy. Spektra arter. Extend the life of your blades The care of the blades and scissors is to refrigerate, disinfect and clean with the spray of easy use and instantaneous artertero freshresh (Ref y447 see below in “related products”) every time it changes service or so many times is necessary. Purchase with confidence: 100% arthter guarantee. Artero is a Spanish company with more than 100 years of experience in the world of professional hairdressing.