Features: brand new and high quality Replacement part have rotor, shaft, bearing and end caps. Direct replacement for original impeller assures perfect fit. It is a miniature filter impeller, miniature submersible pumps dedicated. Made by plastic, rubber and magnets. 2 Kinds of shaft cores to choose, stainless steel core and ceramics core; 2m and 2.5m high lift to choose. Specifications: Material: Plastic, Rubber, Magnets Color: Black+White Style: 2 Meter H/L Stainless Steel Shaft Core/2.5 Meter H/L Stainless Steel Shaft Core/2 Meter H/L Ceramics Shaft Core/2.5 Meter H/L Ceramics Shaft Core Size (Approx.): A/C-Shaft Diameter 18mm/0.71in, Bearing Diameter 37.8mm/1.49in, Total Length 75.7mm/2.98in B/D-Shaft Diameter 19mm/0.75in, Bearing Diameter 40.5mm/1.59in, Total Length 90mm/3.54in Weight (Approx.): 200g Package Includes: 1 Piece Submersible Pump Rotor Impeller with Shaft and Bearing (4 Options) note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!