- Compatible with Dolphin Pool Cleaners: This replacement kit is designed for Dolphin Maytronics robotic pool cleaners, including M200, M400, M500, Nautilus, Nautilus CC Plus, DX3, DX4, DX6, and more. Verify compatibility by checking your device model before ordering. - Comprehensive Replacement Parts: The kit includes the following components: - 4 climbing rings (Part Number: 6101611-R4) - 2 timing tracks (Part Number: 9985006-R2) - 4 guide wheels with 2 pulley gears (Part Number: 3884997-R6) These parts are also compatible with older models such as Sigma, Triton, Deluxe 4/5, Apollo Plus, and more. - Durable Construction: Made from high-quality rubber, the climbing rings support reliable performance and extended product life. The material is engineered for durability in pool cleaning applications. - Versatile Applications: Suitable for residential and commercial pools, this kit helps restore proper function to your robotic pool cleaner. - Important Note: These are aftermarket parts. Brand names and model numbers are used only for reference and compatibility purposes. Upgrade your robotic pool cleaner with this replacement kit for consistent cleaning performance.