uxcell Silicone Aquarium Suction Cup Glass Cover Airline Tubing Holder Clamp 13mm Dia 10 Pcs Clear With 10 pieces suction cups, you can easily install the glass clips. Equally install the holders to the aquarium and place the aquarium glass over on it. Fit Airline Diameter : 13mm / 0.51";Suction Cup Diameter : 28mm / 1.1" Weight : 26g;Product Name : Aquarium Airline Holder;Feature : Suction Cup Package Content : 10 Pcs x Aquarium Airline Holder;Material : Silicone;Color : Clear