uxcell 16" Aquarium 5mm Connector 41cm Mineral Air Bubble Stone bar Package Content: 1 x Aquarium Airstone; Total Size: 42 x 2 x 1.4cm / 17" x 0.8" x 0.6"(L*W*H) Color: Green, Blue; Material: Mineral, Plastic; Net Weight: 124g; Model: NAQ-106 Made of mineral material, it effectively create water currents and dazzling underwater scenes. Creates bubbles in fish tank while attached to an air pump(Not Included). An ideal tool to add oxygen to your hydroponic growing system.