Feature:1. Using acrylic brackets, crystal clear and beautify the fish tank.2. Nanoceramic chips have a better effect of refining the air in the water.3. Two standard suction cups, one finetuning valve, and the oxygen augmentation tube is connected to adjust the desired effect.4. Aquarium aeration pump accessories, can oxygenate the living body for better performance.5. Fine workmanship, enough oxygen, fish can grow faster and more energetic.Specification:Condition: 100 percent brand newItem Type: Fish tank bubblerMaterial: Acrylic and nano ceramic sheetColor: As pictures shownProduct Usage: Aquarium aeration pump accessories, refine the air in the water, and oxygenate the living bodyKCXH-35 (Medium Size): Main Bubble Tray: Diameter: 3.5cm, Height: 7cmGWXH-50 (Large Size): Main Bubble Tray: Diameter: 5.5cm, Height: 7cmBSFH-028-1 (Mini Size): Main Bubble Tray: Diameter: 1.2cm, Height: 7cm.Package List:1 x Bubble Tray1 x Fixed Suction Cup1 x Opening Clip1 x Two Way Adjusting ValveNote:Please soak this product in the fish tank for 30 minutes before use, to have better effect.