- Compatible replacement set for robot pool cleaners, designed for a precise fit and reliable function with models including 6101611 R4 climbing wheel and 9983152 R2 timing tracks. - Four 6101611 R4 climbing rings enhance wall traversal and expand cleaning coverage, helping your cleaner reach vertical surfaces for a more thorough clean. - Two 9983152 R2 timing tracks let you adjust the operating timing to match your cleaning schedule and pool size, supporting efficient performance. - Durable construction and pool grade materials resist chlorine, sunlight, and other pool conditions, delivering long term use across the season. - Use scenario: upgrade an older cleaner to restore wall cleaning performance in pools with tall or complex walls. - Use scenario: replace worn rings and tracks after heavy use to maintain cleaning effectiveness. - Use scenario: seasonal maintenance to preserve consistent cleaning results with minimal downtime.