This Package Contains 6 Pieces Of Brass Wire Wheel Brushes. Each One Is 1.5" In Diameter, And Is Pre-mounted On A 1/8" Shank, Which Is Compatible With Most Any Rotary Tools. These Little Brushes Are Tough And Long Lasting, And Will Help Clear Away Rust, And Old Paint From Even The Tiniest, Out-of-the-way Areas.* 6 Pieces In The Package * Genuine Brass Wire * 1.5" Diameter Wheel * Pre-mounted * 1/8" Shank