1.Robust and durable: The rope is made of nylon, the hook is made of stainless steel, and the buoy is made of plastic, it is not easy to deform, tear or break, and can be used for a long time. 2.Easy to adjustThe buoys on the rope can be adjusted and moved; there is a holder inside the rope next to each buoy, and by adjusting the buoy, you can adjust the distance of the buoys. 3.Smooth surface: The surface of our buoys is smooth and pleasant to touch. Swimmers do not have to worry about cuts when touching the buoys in the water, which provides a good guarantee. 4.Versatile: It can not only distinguish between dark and shallow areas to prevent accidents, but it can also be used to create swimming lanes so you can swim with peace of mind.