Stadea Series Standard A - DSD101A, 5 Inch Hand Angle Grinder Dust Shroud for surface, floor grinding dust collection. It is designed to minimize and contain the dust exposure during dry sanding grinding of concrete or other hard surfaces.Its maximum collar size is 1-13/16", it fits with most 4" to 5" angle grinders, hand grinders, surface grinders for various brands hand angle grinders. Do check collar size for your grinder prior to purchase. Adjustable Shroud HeightDust shroud with velcro strip for easy height adjustment to match the height of grinding tool. Over time the grinding tool height changes, adjustable velcro adjusts to the height of grinding tool to minimize the dusk leak.