Pool lanes may look simple, but their design is quite smart. They are made from materials that are durable, water-resistant, and designed to handle constant exposure to water and sunlight. Most pool lanes are made using plastic discs or floats threaded onto a strong rope or stainless-steel cable. The discs are not just for decoration — they play a very important role. Each disc rotates freely on the cable, breaking up waves and reducing water turbulence. This prevents waves created by one swimmer from affecting others in nearby lanes. The discs come in various sizes, usually between 100mm to 150mm in diameter, depending on the pool type.. https://fitnesstrackerforswimmers.com/product/pool-lane/