uxcell Plastic Aquarium Airline Tube Holders Clips Clamps Suction Cup 20 Pcs Clear High quality cup grips securely in all weather conditions. Material: Silicone, Plastic; Total Size: 25 x 21mm/1" x 0.8"(D*H);Fit Rod Dia: 5mm/0.2" Each suction comes with one clip. You can easily adjust shape and position of airline. Soft plastic clear holder clip. Perfect for fish tank, aquarium and any glass surface.