【360/380 Adaptability】With the feature of durable and high density fits for Polaris belt replacement kit, absolutely compatible with Polaris 360 and Polaris 380 automatic pool cleaners, replacing OEM part number 9-100-1017. 【Long Service Life】The service life of the belt replacement kit under normal operation is very long, the belt material is very durable, the load-bearing capacity and working strength are very good, and it is difficult to damage. 【Reinforced Belt Design】The design details are excellent, reinforced belt design. The rubber outer cover provides flexibility, while the inner reinforcement cords provide resistance to stretching and breaking. It is non-toxic and very safe. 【Easy to Use】Remove the old Polaris belt, replace it with our new belt, and rotate it slightly when worn to maximize the service life. For Polaris Belt Replacement Kit. No damage occurs in normal operation, 2 belts (small and large) packed, meet most customer requirements. 【Premium Materials】The material