Diameter Silicone Aquarium Sucker Suction Cup <br /><br />Feature:<br /><br />Silicone material, flexible, durable.<br />Good suction effect,can use for aquarium and any glass surface.<br />Suit for 4mm\/6mm standard air line.<br />It can fit air aquarium tubing, diffusers, bubble counter, check vale,CO2 tubing,  etc.<br />You can adjust air line length and shape according to your demand with the item.<br /><br />Description:<br /> <br />Diameter of Suction Cup: Approx. 2.7cm (1.06&amp;rdquo;)<br />Diameter of Clip: Approx. 6mm(0.24&amp;rdquo;)<br />Material: Silicone<br />Color: Transparent<br /> <br />Package Included:<br /><br />1x Aquarium Sucker Suction<br /><br />Note:<br /><br />1,The suction cup can produce enormous power and stick to glass surface firmly,<br />when getting rid of air inside completely or wet the suction cup before use it.<br />2,If they are folded during transit, please simply immerse them in warm water(about 40-50 degrees centigrade) for a while. <br />They will work again.<br />3,Due to the light and screen difference, the item's color may be slightly different from the <br />   pictures. Please understand. Make sure you don't mind before you bid.<br />4, Please allow 1-5mm differences due to manual measurement.