Crafted with precision, this aquarium air stone disc features a material that efficiently diffuses air into tiny bubbles. It seamlessly integrates with your aquarium pump, ensuring optimal aeration. Its compact design complements various tank sizes, providing a solution for oxygen distribution and water circulation. Features -Color:White -Material:ABS/ stainless steel/sandstone -Size:6.20X5.60X3.40cm/2.44X2.20X1.34in -Silent design: enjoy a tranquil aquarium environment with this air stone's quiet operation, ideal for use at night without interrupting your sleep -Uniform oxygen distribution: the micronlevel bubble disc ensures even oxygen distribution, boosting the water's oxygen levels and supporting the healthy development of your fish -Highefficiency atomization: this air stone's efficient atomization technology increases the water's surface area for oxygen exchange, helping to maintain optimal water quality -Universal compatibility: for all aquarium types, including both freshwater and saltwater setups, consistently providing ample oxygen - durability: engineered for durability, this air stone withstands longterm use, minimizing the need for frequent replacements and simplifying aquarium maintenance Package list: 3 x Air Stone Disc