1. Restores Wall-Climbing Ability: If your Dolphin pool cleaner (M200/M400/M500) struggles to climb walls or gets stuck frequently at the start of the pool season, these climbing rings are the ultimate fix. 2. Perfect Fit for Dolphin Robots: Designed to seamlessly replace worn-out wheel covers, ensuring smooth vertical movement and step-climbing performance. 3. Enhanced Cleaning Efficiency: After installation, your cleaner will glide effortlessly along pool walls, stairs, and floors, improving overall cleaning coverage. 4. Durable & Precise Design: Inner diameter 1.89 inch, outer diameter 3.62 inch. Includes 4 high-quality rings per pack. 5. Easy DIY Replacement: No tools required! Simply swap the old rings with the new ones for instant results.
