There are different types of pool lanes used in swimming pools, depending on the purpose of the pool. For professional competitions, standard floating lane ropes with wave-breaking disks are used. These lanes are designed according to international standards and are used in Olympic and world championship pools. For training pools, lighter and smaller lane ropes are used. These are easier to install and maintain. In school or recreational pools, lane dividers may even be made of foam or rubber materials for safety, especially for children.