【Natural Water Purification】:This 99.9% pure copper purification disk is specially designed for outdoor bird baths. It uses natural copper ions to purify water, ensuring healthier drinking for birds 【Purification Principle】:Copper ions can naturally reduce droppings and debris, and keep the water clear and clean 【Four-Point Contact Design】:The unique four-point support system can ensure the copper disc remains stable in various birdbath styles, and maximizes surface contact with the water, enhancing purification efficiency 【All-Season Use】:With a passivated surface, the copper disk can remain its physical purification effect year-round. Fits most non-metallic outdoor bird baths without interfering with the normal operation of fountains, heaters, or other features.(Not suitable for metal bird baths, metal will react with copper and reduce its effectiveness 【Save Time and Money】:Easy to use, just place the copper disc in water – no electricity, no maintenance required, and it begins to work. It helps extend cleaning intervals and reduce the purchase of various cleaning tools, effectively saved your valuable time and money 1