Copper bird bath disk, 0.6 mm thick, 99.99 percent pure copper. Package quantity: 1. Product highlights Primary function: Uses coppers natural properties to help maintain cleaner water in bird baths, reducing the need for frequent scrubbing. This product does not regular cleaning or periodic water replacement. Material and size: 99.99 percent pure copper plate, 0.6 mm thick for effective contact with water. Design: Three point support design maximizes surface contact with water to increase purification effect. Operation: Simple to use place the disk in a non metallic basin, remove visible debris as needed, rinse and refill. Perform a deeper clean once a week or every two weeks. Compatibility: Suitable only for non metallic basins such as stone, plastic, nylon, and composite materials. Do not use with metal basins including alloy or iron, since metal can react with copper ions and reduce effectiveness. Weather resistance: Surface undergoes a passivation process so the physical purification effect remains consistent year round. Compatible with fountain pumps and basin heaters when the basin is non metallic. Practical benefits Reduces frequency of manual cleaning by helping to slow buildup of slime and algae, extending typical cleaning intervals from about every 3 days to about every 14 days in many situations. Saves maintenance time, with an estimated reduction of roughly 120 minutes of cleaning per month in comparable use cases. Simple, one piece installation eliminates the need for multiple specialized cleaning tools. Typical applications Backyard bird baths made of resin or plastic: place the disk on the basin floor to reduce slimy buildup and keep water clearer between manual cleanings. Stone garden basins: compatible with stone or composite basins to help maintain water clarity while preserving the basin surface. Outdoor fountains with non metallic basins and heating elements: works alongside fountain pumps and heaters without interfering with equipment when the basin is non metallic. Usage notes Remove droppings, leaves, and other debris regularly. Rinse the basin and refill with fresh water for routine maintenance. Perform a deeper clean at least once a week or once every two weeks depending on local conditions and usage. Do not use in metal basins. Use only in non metallic basins to ensure the copper disk remains effective. What is included One 0.6 mm thick copper disk, 99.99 percent pure copper, with three point support design.