The Raizi Economy Dust Shroud captures up to 99% of the concrete dust created and fits a variety of 5″, 7″ or 9″ hand grinders. It has been designed to make grinding easier and more manageable. A short brush skirt improves lateral motion for grinding on uneven or textured surfaces and prevents dust escaping. It is made of durable polycarbonate and the front lip slides around so you can use it against a wall.