uxcell Aquarium Fish Tank Pink Round Diffuser Oxygen Bubble Air Stone Color: Pink, White; Package content: 1 x Air Stone Total size: 105 x 80 x 16Mm / 4,1" x 3.1" x 0.6" (l*dia*t); material: Plastic, Stone Product Name: Air Stone Net weight: 130g Outlet hole diameter: 3Mm