Function and Operation: The primary function of the bird bath cleaner copper disc is to keep the bird bath clean and fresh, thereby reducing the need for frequent scrubbing.For routine cleaning, simply remove debris such as droppings and fallen leaves, rinse the bird bath thoroughly, and refill it with fresh water. However, a deeper cleaning once a week or every two weeks is still essential! Compatibility Notice: Bird bath copper disc function only with non-metallic basins including stone, plastic, nylon, or composite materials. Do not use with metal basins (alloy/iron).Metal reacts with copper ions, neutralizing the copper's efficacy. Natural Water Cleaner: The 99.99% pure copper bird bath plate (0.6mm thick) leverages copper's innate properties to help maintain cleaner water in bird baths. "This product does not replace regular cleaning or water replacement" Effective Design for Maximum Contact: The bird bath copper disk features a three-point support design, maximizing surface contact with the water, keeping your bird bath clean and fresh.Say goodbye to the frequent and tedious cleaning of slimy, green bird baths.With the copper disk, cleaning intervals can extend from approximately every 3 days to about every 14 days, saving you around 120 minutes of cleaning time each month. All-Weather Effectiveness: The copper disk's surface undergoes a special passivation process, ensuring that its physical purification effect is consistent year-round, unaffected by weather conditions.It also won't interfere with any fountain or heating equipment you may be using.This makes it a reliable water purification tool throughout the year. name:Bird bath tray cleaner Material: Copper Color: As Shown Package Contents: 2 * Bird bath tray cleaner Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm