REPLACEMENT KIT - These 7, single-use Safety Edges are compatible with both the Sonicsmooth and Sonicsmooth Pro models. DERMAPLANING SYSTEM - These replacement Safety Edges are designed to expertly trim facial vellus hair (peach fuzz) while helping gently exfoliate to remove dead skin cells and smooth uneven skin. PROFESSIONAL GRADE - Spa-quality dermaplaning results in the comfort of your own home are possible with the Sonicsmooth Safety Edges.