Compatibility: Fit for DWP611 Type 1 Premiun Compact Router, DWP611PK Type 1 Premium Compact Router Combo Kit; Porter Cable: 450 Type 1 1.25HP Compact Router, 450PK Type 1 Compact Router Combo Kit.Function: It is a common motor component replacement item fix for motor malfunctions.Wide Application: The replacement carbon brush for the DWP611 routers used on most X-Carve, shapeoko,and similar machines.Colour:blackMaterial:carbonSize:6 x 9 x 19.5 MM Package Contents:4 * Carbon BrushesOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.