About This Reversible Edge Guide: Includes a detachable fence/edge guide with both a straight and a curved profile; use it as a router guide to follow edges, curves, or templates with precision and reliability Universal Fit & Durability: Made from thick, clear acrylic, this universal router base plate is pre-drilled for common routers and customizable to others; includes screws for easy attachment and secure performance Enhanced Stability & Control: Our clear acrylic handheld router sub-base provides extended surface support for smoother, steadier edge-routing operations, improving results when working with profiles or grooves Versatile Applications: The dual-edge guide lets you handle both straight and curved routing tasks with precision using your router edge guide; designed for flexibility, it works seamlessly with most router parts & accessories What’s Included: You get (1) Rockler Universal Router Baseplate - (1) Standard (4'' O.D.) 1-3/16" Guide Bushing Insert - (1) Pack of Screws to Attach Router with this router tool accessories