Specially designed parts for Roboter-Poolreiniger This exclusive replacement set is built for robotic pool cleaners and guarantees compatibility with models 6101611 R4 Climbing Wheel and 9983152 R2 Belt. Mobility improvement Includes four climbing rings for the 6101611 R4 to help the cleaner navigate walls smoothly and deliver thorough cleaning. Optimized performance tracks Includes two timing tracks for the 9983152 R2, helping to maximize efficiency by enabling cleaning schedules tailored to your needs. Durable and reliable Constructed from strong materials that resist wear in demanding pool conditions, ensuring dependable operation throughout the season. Use scenarios - Pools with vertical walls or steps: install to restore wall cleaning performance and achieve complete coverage. - Seasonal debris or variable usage: use the timing tracks to customize cleaning cycles based on debris load and pool schedule. - Upgrading or replacing worn components: designed to maintain compatibility with 6101611 R4 and 9983152 R2 parts for continued performance.