3mm Mandrel White Bristle Pen Polishing Brush 30 Pcs for Dremel Product Name : Pen Polishing Brush;Mandrel Diameter : 3mm/ 1/8"(0.12") Overall Size : 5 x 50mm / 0.2" x 2"(Max D*L);Material : Bristle, Metal Color : White, Silver Tone Net Weight : 82g Package Content : 30 xPen Polishing Brush