Rotary 1" Steel Wire Jewelry Polishing Wheel Brushes Silver Tone 12pcs Main Material: Steel Wire, Metal; Package Content: 12pcs x Polishing Wheel Brush Product Name: Polishing Wheel Brush; Weight: 63g Main Color: Silver Tone; Head Size: 25 x 2mm/ 1" x 0.08"(D*Tickness) Shank Diameter: 3mm/ 0.12" Total Length: 41mm/ 1.6"