Festool 204871 Systainer3 Rails SYS3-SN/4 lets you create a personalized organization system tailored to your needs with ease. Designed specifically for Systainer3 Systainers with footprint M and L, these Rack Rails feature an interlocking design that utilizes the integrated rail slot of the Systainer. Installation is straightforward—simply secure the rails using screws (not included) to build a fully customized racking system that fits your workspace ly. For optimal use, two Rack Rails are required per Systainer, making your storage setup both efficient and adaptable. Easy to use and easy to install, these rails bring convenience and flexibility to your tool organization. Model Number: 204871