Uxcell 2-Piece Aquarium Ornament Air Stone Bar, Blue Product Name: Aquarium Air Stone Suitable for: Tank, Aquarium; Shaped: Bar Design; Material: Mineral, Plastic Outlet Connector Diameter: 6mm/0.24" (max.); Stone Length: 15cm/6"; Weight: 73g Total Size (Approx.): 16.2 x 2.1 x 1.3cm/6.4" x 0.8" x 0.5" (L*W*T); Color: Green and Blue Package: 2 x Aquarium Air Stone