Radius Garden 501NK Pond Shark Net Replacement Kit Net Replacement Kit for Radius Garden Pond Shark and Pond Shark PRO water gardening tools The sturdy net tears through unwanted pond scum, debris, and string algae, to help keep your pond clean Hydrodynamic head is perfect for catching Koi, Comets, Shubunkins, and any other fast moving aquatic creature Pack of 2 replacement nets No-pinch hidden spring and comfort grip