Allows Collection of harmful dust during cutting Application attachs directly to 115,125mm all majors brand grinders With 4 pcs clamping washer thickness 1.5-5.5mm Locking attachment to vac hose. Box Contains: 1x Dust Shroud4 pcs clamping washer 1x Universal Diamond Cutting Disc 1x shroud wrench.Cannot fitting model No.: Bosch GWS13-125CI;GWS13-125CIE;GWS13-125CIX;GWS13-125CIEX;GWS 17-125 INOX;GWS 17-125CI;GWS 17-125CIE;GWS 17-125CIT;GWS17-125 CIT ;GWS 17-125CIX ;GWS 17-125 CIEX;GWS 17-150CI.