Features: This coppers bird bath disc naturally purifies water through oxidation, reducing cleaning frequency from every 3 days to 14 days while maintaining freshness water for avian visitors. Featuring a three point support design for maximums water contact and weather resistant passivation treatments, this 99.99% coppers disc works seamlessly with fountains and heating systems year round. Ideal for bird enthusiasts and garden owners seeking low maintenance solution to keep water habitats hygienic without chemical additives. Place this auto cleaning coppers plate in outdoor birdbaths to inhibit algae growth and organic buildup, ensuring clean drinking water through seasonal temperature changes. Engineered with corrosions resistant coppers technology by historical monuments, this maintenance saving disc eliminates multiple cleaning tools while protecting backyard ecosystem. Specifications: Dimension:10×10cm/3.93×3.93in Component:coppers Package Includes: 1pc Bird bath coppers plate note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.