Canvas Fish Pond Above Ground Koi Tank 480 L Rectangular Pond (Black)High Quality Materials: Made from 0. 9 mm thickened PVC scraper cloth, this canvas fish pond is corrosion resistant, sun resistant, wear resistant, scratch resistant, and secure. The seamless stitching ensures waterproof performance without leaks, ensuring secure use. Sturdy Structure: The above ground fish pond features high strength stainless steel pipes that are rust resistant and corrosion resistant. Its strong, stable frame ensures that it