Crystal Glass Fish Tank Oxygen Aerator Transparent Glass Air Stone Aquarium Cylinder

Label:Yes Package includes: 1pc*Dissolved Oxygen Device+1pc*Air Stone+1pc*Air Volume Adjustment Valve+1pc*2m Oxygen Tube Feature: Durable, Practical Size: As Shown Color: Transparent Material: Glass Note: Please note that photos do not show actual size, see description for size details. Please allow 1-2cm(0.39-0.79in) difference due to manual measurement, thank you. Due to differences between different monitors, pictures may not reflect the actual color of the item.