Jardin Sintered Mineral Bubbles Air Stone for Aquarium, Blue Product Name : Aquarium Bubbles Air stone; Suitable for : Fish Tank, Aquarium Material : Mineral, Plastic; Fit Air Tube : 5mm/2" Air Stone Size(excluded connector) : 7.4 x 5cm/2.9" x 2"(L x W); Total Length(Approx.) : 8.7cm/3.4" Color : Blue; Weight : 77g Package : 1 x Aquarium Bubbles Air stone