uxcell Rotary 1" Bristle Jewelry Buffing Polishing Wheels Brushes Black 6PCS Main Material: Nylon, Metal; Package Content: 6pcs x Polishing Wheel Brush Product Name: Polishing Wheel Brush; Weight: 22g Main Color: Black, Silver Tone; Head Size: 25 x 1.5mm/ 1" x 0.06"(D*Tickness) Total Length: 41mm/ 1.6" Shank Diameter: 2mm/ 0.08"