For Standard Hoses: Each suction cup is 3cm in diameter with a 0.5cm clip. Perfect for holding standard 0.5cm ID or 0.6cm OD aquarium airline tubing or CO2 tubing.
Strong Suction: Made of soft and flexible plastic material, the suction cups can stick tightly to your fish tank, aquarium or other glass surface for stable holding.
Tough Plastic Clips: Each suction cup comes with a sturdy clip which firmly clamps the tubing to keep it in place. It is also rotatable to easily adjust the position of tubing.
Detachable Design: Easy to disassemble it by pulling out the clip from the sucker base. You can also push it back into the suction cup if they come apart.
Easy Maintenance: Just clean and dry both suction cups and glass surface before installation. Please replace them timely if they get old and worn after long-time use.