We’ve paired our Original Dust Grabber shroud with the Makita GA7021 creating a great ready to work solution. This kit comes fully assembled all you have to do is pull it out of the box and get to work. The Dust Grabber features a durable metal body, long lasting polymer seals and is backed by a lifetime warranty(the grinder is under the Makita Warranty). Many dust shrouds attempt to seal the shroud to the surface and become suction locked to the surface causing damage. Dust Grabber shrouds prevent this from happening. The patented design creates a vortex of air around the edge of the shroud, eliminating suction lock and allowing the grinder to float across the surface like a puck on ice.