Hoppe's 9 Tornado Brush 12 Gauge Shotgun. The stainless steel loops eliminate any bristle ends that could leave scratches yet removes fouling without damaging bore. Spiral design reaches all of the hard to get spots. Stiff bristles remove fouling but will not damage bore. Unique looped wire design of Tornado Brush won't scratch. Specifications for Hoppe's 9 Tornado Brush: Manufacturer: Hoppe's 9 Quantity: 1 Fabric/Material: Stainless Steel Package Contents: Hoppe's Tornado Brushes Hoppes 1260 - Tornado Brush 12 Gauge