PORTER-CABLE 42700 Edge Guide (for Models 7518, 7519, 7529, 7536, 7537, 7538, 7539 Routers) Used to guide the router via the edge of the work piece Compatible with all 7500 Series Router Bases Dual sliding mounts lock in place Comes with edging guide and mounting hardware Dimensions are 17-by-9.8-by-3.2-inches; weighs 3-pounds