5" Dust Buddie Shroud, Polycarbonate For Improved Durability, Fast & Easy Installation With Universal Bracket Band Clamp Combination, Removable Front Edge For Grinding Close To Wall, Brushes On Base Make It Easier On Rough Surfaces Like Grout, Ledges & Pitted Concrete, Complies With EPA Regulations For Point Of Origin Dust Containment, Fits Most 4" & 5" Hand Grinders, Fits Collars 2.1" Down To 1.3".