Where a checkout line follows the same path every day, rigid rail turns that path into part of the building. Each straight section mounts between posts to create a solid barrier at rail height—one that guides a queue the way a belt does, but stands up to constant contact the way a belt can't. Sections come in 3, 4, and 6-foot lengths so runs can match the floor plan exactly, and Wrinkle Black or Satin Aluminum finishes coordinate with Lavi belt stanchions across the rest of the space. Combine with curved sections to route a complete lane from entry to counter.