uxcell Fish Tank Dark Gray Cylinder Mineral Aquarium Bubble Airstone 40mmx220mm Color: Black,Gray; Package content: 1 x Aquarium Bubbles Airstone Total size: 245Mm/ 9.6"; material: Mineral, Plastic, metal Net weight: 430; product Name: Aquarium Bubbles Airstone Stone size: 220 x 40Mm / 8.6" x 1.5"(H*d) Outlet Connector diameter: 3.5Mm/ 0.1"