Features: This T-slot track is made of aluminum alloy material, not easy to be scratched or bent. It is corrosion resistant, easy to use and durable. This track can be used with many wood working tools, such as slide bars, fixtures. There are two length: 300mm and 400mm that you can choose for different projects. Perfect for building jigs and fixtures for your radial arm saw, workbench, drill press, and various other machines. Specifications: Length: 300mm, 400mm (Optional) Material: Aluminum alloy Quantity: 1 Package Includes: 1 x T-Slot Track Package List 1This T-slot track is made of aluminum alloy material, not easy to be scratched or bent 2It is corrosion resistant, easy to use and durable 3This track can be used with many wood working tools, such as slide bars, fixtures 4There are two length: 300mm and 400mm that you can choose for different projects 5Perfect for building jigs and fixtures for your radial arm saw, workbench, drill press, and various other machines