- Stable construction: This pool lane divider rope is made from high density ABS for a rigid, durable structure that resists deformation, tearing or breaking. UV resistant for long outdoor use. The nylon line provides high strength, low density, good stability, high tension and strong load capacity. - Buoyancy stability and anti-interference: The buoyancy coefficient is stable and interference is minimized. The design reduces water wave disturbance along each lane and lowers drag, allowing it to float reliably on the water surface and provide a steady competition environment for athletes. - Pool rope system details: Includes 1 m safety buoy with 2 buoys, each with a diameter of 7 cm. Number of pool buoys supported from 1 to 18 m. Length and number of buoys are freely adjustable to fit your needs. The length can be customized. If you need other lengths, please contact us by email. - High visibility: Blue and white buoys are easy to spot in water and clearly distinguish deep and shallow ends and lanes. Use this safety rope and buoy as a safety marking line to protect swimming safety.