Usage Tips:Replacement for part number 3884997-r6: Replacement for Dolphin Pool Cleaner Guide WheelS and Pulley 3884997-R6Guide 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. High Compatibility: Dolphin Prowler 820/830, Wave 50, Wave 75, Wave 90, Wave 2X2 Gyro, Quest, Premier , Plus , , , C5, 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. High Quality Material: The essential accessories of the pool cleaning machine are made of high-quality 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, that the dolphin pool cleaning machine runs funny. 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 very good climbing ability. The portable size doesn't take up any extra space. Colour:White Material: PVC Package Contents: 4 x Guide Wheels 2 x Pulley Gears Only the above package content, other products are not included. 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.