Compatible Model: These impeller bolts are designed for 180 and 280 pool cleaners. Part Number C-55 C55.Durable: Made of ABS and PC material, proves to be durable as the system works every day. Work Like New: White impeller screws always break after exposure to pool chemicals make them brittle. Set of 6 plastic impeller screws and 6 replacement washers for pool cleaner. .Description:Compatible Model: These impeller bolts are designed for 180 and 280 pool cleaners. Part Number C-55 C55.Durable: Made of ABS and PC material, proves to be durable since the system works every day. Work Like New: White impeller screws always break after exposure to pool chemicals make them brittle. Pool Cleaner Replacement Kit: You will get 6 plastic impeller screws and 6 replacement pool cleaner washers. Easy Installation: No hassle installing this replacement impeller screw set or problems with these screws installed on your pool cleaner.Specifications:Material: ABS+Polycarbonate.Color:White.Size(Approx):Screw: 2.2 x 1.8 x 0.8 cm (bottom diameter x top diameter x height). Washers: 2.7 x 0.8cm (outer diameter x inner diameter).Contents:6 screws.6 washers. Note: The data are all manual measurement, please allow 1-3cm error, due to the light and display difference, there will be some difference of color, depending on the physical item received.