These suction cups is made of high quality soft plastic
Fits standard 3/16" aquarium airline tubing with outer diameter about 0.2”
Easy to install and uninstall: each hose suction cups comes with a clip, you can easily adjust shape and position of airline, easy to install and uninstall, ideal for aquarium accessories
Usage tips: Please clean and dry the glass surface and dip the suction cup into the water before using. If the suction cups are deformed, soak them in hot water for about 10 minutes
