1. The 1 m long buoy line has 2 buoys, each buoy is 10 cm long and 7 cm wide. The rope can meet your requirements and those of your pool, while the integrated floats can be moved or removed to create an effective visual perception for swimmers. 2. Our ropes are developed for the of your family and children. With this set, you can separate the shallow and deep ends of your pool and easily detect depth changes. Can also be used to create swim lanes for training and competitions. The twocolor buoys are highly visible and ideal for marking dangerous areas or delineating swim lanes. 3. The swimming line is mainly used as a surface navigation aid. It is great for cordoning off hazardous spots or swim lanes and is mainly used in swimming pools, waterways, shallows, beaches, dangerous places, and more. Can also be used for gymnasiums, private pools, oceanariums, landscape pools, and other large pools. 4. The rope is made of durable nylon material, and the buoys are made of very hard polyethylene plastic, are lightweight, have strong buoyancy, and are very stable. They do not tear due to sunlight and water and do not fade, so they can be used for a long time.