Compatible with Most Routers: The Slab Jigs are adjustable to fit most fixed-based routers, so you can rapidly level out large wood slabs and easily plane slabs up to 64 inches wide. You can regulate the nut block and the long hole to match various models of woodworking trimming machines. Built to Last: Our router planer rails are made of high-quality machined aluminum, meaning they are not easy to bend or warp, even after lots of heavy use. The slab jig from VEVOR is built tough, and will last for years to come. Upgrade Design: This router slide jig adds a flip board fixing device to make the XY axis work in both directions. Our slab flattening jig also has a 43" x 118" widened base and locking function, providing stable and convenient operation. Simple to Assemble: Includes all the parts you need to put together your new router planning sled in a matter of minutes. Then, you'll be ready to work on river tables and plane wood slabs. 3" tall ultra track aluminum rails support the router and won't deflect as you move the router back and forth over the stock. Extensive Use: Our planing sled is an affordable solution for surfacing or milling live edge slabs, comprehensive stock, butcher blocks, workbenches. It is widely used in removing a finish from a surface, and other jobs impossible for a planer. Router not included.