[Aquatic Filter Brush]:This fish pond filter brushes is designed for various types of aquatic filtration systems.It filter suspended particles and others [Features]:The brush features high density filaments and a large spatial structure that intercepts large particle impurities and absorbs particles in the water [Design]:The brush is made with a neat twisting process that ensures it does not shed its bristles [Material]:The brush rings is made of nylon.The bristles are made from PET material,stainless steel core of the brush is easy to bend [Widely Used]:Fish pond filter brushes set for koi pond filter fish tank aquarium water garden pond skimmer cleaning brush, Weight: 0.551155655 pounds, Manufacturer: Zanthicia