Replacement for part number 3884997-R6: Guide wheels and pulley replacement kit compatible with Dolphin pool cleaners. Includes 4 guide wheels and 2 pulley gears. Designed for easy installation with no special tools required, helping maintain optimal performance of your pool cleaning system. High Compatibility: Fits Dolphin Prowler 820, 830, Wave 50, Wave 75, Wave 90, Wave 2X2 Gyro, Quest, Premier, Plus, C5, C6 Plus, Advantage Plus RC, Advantage Plus Pro RC, Deluxe 3, Deluxe 4, 3001, DLX 4, Deluxe 5, HD, PROX2, DX6, M400, M500, M5, Edge, Triton, Triton Plus, Heavy Duty, and other compatible robotic pool cleaners. For model-specific questions, contact seller through Amazon messaging. High-Quality Material: Made from durable PVC, these components offer long-lasting performance and resistance to wear. Helps ensure smooth and reliable operation of your pool cleaner. Portable and Easy to Use: Compact design allows for easy storage and handling. Guide wheel dimensions: approximately 2.05 x 2.05 x 1.06 inches, with inner diameter of 1.18 inches. Pulley gear dimensions: approximately 2.24 x 2.24 x 1.57 inches. White color. Package Contents: 4 x Guide Wheels, 2 x Pulley Gears. Product sold as shown; other items not included. Note: Color may vary slightly due to lighting and display settings. Measurement tolerance: +/- 1-3 cm.