Cable is a way to wakeboard, in which the riders rope and handle are pulled by an electrically-driven cable, whereas traditionally a rider is pulled by a motorboat. The mechanism consists of two cables running parallel to one another with carriers between them every 80 metres. The carriers are metal tubes that can hook up tow ropes with riders. Tow ropes are detached and attached at the same time without slowing the system down, which is a main reason for its high efficiency.  With a main cable of 800 metres long, 10 riders can waterski or wakeboard at the same time. The speed of the main cable can be up to 38 mph (61 km/h), and riders can reach much higher speeds. The most common speed is 19 mph (31 km/h), which suits wakeboarders best.