Compatible with robot pool cleaners. This replacement kit is designed for robot pool cleaners, ensuring a precise fit and full functionality with models such as the 6101611 R4 climbing wheel and 9983152 R2 belts. Four climbing rings. The included four 6101611 R4 climbing rings enhance your cleaner's ability to scale walls for thorough cleaning coverage around the pool. Two timing tracks. Two 9983152 R2 robot timing tracks allow you to adjust the operating schedule to efficiently meet your cleaning needs. Durable construction. Made from materials built to withstand pool environments, these parts are designed for long service through the season. Use scenarios: - Replace worn components to restore wall cleaning performance on vertical surfaces. - Upgrade to improve wall traversal in large or multi-level pools. - Optimize cleaning timing for daily or weekly maintenance during peak season.