Features: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information;2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.Replacement part have rotor, shaft and bearing.4.It is a miniature filter impeller, miniature submersible pumps dedicated.5.Made by plastic, metal and magnets.6.The submersible pump rotor are suitable for aquarium, garden Pool, etc.Specifications:Material:Plastic + Metal Color:Yellow(Main)Size:73 x 37mm/2.87 x 1.45in(HxDia) Weight:42gPackage include:2 x 16mm Submersible Pump Rotor2 x Meta Shaft