uxcell 2 Pcs Green Plastic Mineral Aquarium Fish Tank Bubbles Air Stone Bar Color: Blue,Green; Package content: 2 x Aquarium Bubbles Air Stone Total size: 4.2" x 1"(L*W); material: Mineral, Plastic Net weight: 54g; product Name: Aquarium Bubbles Air Stone Air Stone body length: 4" Air tube Port outer Dia: 5Mm / 0.2"