Compatibility: These rear tires are specially designed to be compatible with the 4-wheel pool cleaner, for Hayward 400, Poolvergnuegen 4 Wheel, and they are not suitable for 2-wheel cleaners. Durability: Made with santoprene material, these 200 tires are incredibly durable and have a long service life. In addition, they can also be used on the ForHayward Phoenix 4X model. Easy Installation: Replacing worn tires with these new tire kits for your forHayward pool cleaner is a breeze. Simply peel off the old tires and the new ones following the included installation instructions. Considerate Maintenance: When changing the rear tires, it is essential to inspect other parts of your Hayward pool cleaner. If you notice any worn or broken components, it is advisable to replace them accordingly to maximize the cleaner's effectiveness. Package Contents: This purchase includes a set of 2 rear tires, providing you with everything you need for a seamless replacement.