①.Replacement for part number 3884997-r6: Replacement for Dolphin Pool Cleaner Guide Wheels and Pulley 3884997-R6 Guide Wheels (4PK) and 2 Pulleys for the following Pool Cleaners. No complicated tools are required to keep your pool clean and work more efficiently with our replacement parts. ②.High Compatibility: 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, Robotic Pool Cleaners. If you have any model problems, you can consult us directly. ③.The essential accessories of the pool cleaning machine are made of selected materials, which are not easy to damage and have a long service life to keep your swimming pool safe and operating normally. After replacing the accessories, the dolphin pool cleaning machine runs well. ④.Portable and Easy to Use: Package Includes: Four guide wheels and two pulley gears. The guide wheel size is about 2.05inch x 2.05inch x 1.06inch. The inner diameter is about 1.18inch. The pulley gear size is about 2.24inch x 2.24inch x 1.57inch. The guide wheels 3884997-R6 has good climbing ability. The portable size doesn't take up any extra space. ⑤.Colour: White ⑥.Material: PVC ⑦.Package Contents: 4 x Guide Wheels, 2 x Pulley Gears. Only the above package content, other products are not included. ⑧.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.