【99.99% Pure Copper】These bird bath purification disks are made of 99.99% pure copper, and after cutting, grinding and carving, it has a smooth surface, is non-toxic and odorless, rust-proof and corrosion-resistant. This copper disc for bird bath not only purifies the water but also enhances the overall aesthetics of your garden or backyard 【Efficient Purification】After the bird bath copper disk is placed in the water, a protective layer of copper ions will form, which will automatically clean the water and keep the birdbath clean. This makes it a reliable choice for maintaining a clean and healthy birdbath. (Please note: it's suggested that regular cleaning of the bird bath 2-3 weeks at a time, even use a copper disk) 【Stable Support and Bird-friendly】Bird bath cleaner for birds using a 3-point support design, let the copper disk to maintain maximum contact with water while maintaining stability, keeping water clean. Our copper bird bath purification disk ensures physical safety and clean water all season long, and safe for birds 【Easy Maintenance & Cost-Effective】No need for other tools or cleaners, just put bird bath copper disc into bird bath, and it will work. After use, it can be washed once every 15-20 days instead of once every 3-5 days, reusable can saving manpower and resources 【All Season Use】Copper plate for bird bath will not affect the heating or fountain equipment of the bird bath, and the physical cleaning principle is not affected by the weather. All season could use it. Keeping the bird bath clean will attract birds more easily and make the garden more beautiful. It's an all-weather tool that keeps your birdbath pristine and welcoming