Purpose:Cuticle cuttingSandingSide sinus treatmentSide ridge treatmentSevere corns treatmentCuticle treatmentFissure treatmentNail piercingFeatures:Technology: Diamond coating for fast and effective treatment.Gritness: Blue (medium), ideal for normal and sensitive skin.Head diameter: 3.5 mmShape: Ball, suitable for treatment of large areas and precise procedures on the surface nail